Why Brand Names Sound the Way They Do

The bouba/kiki effect, and what it actually shows

Draw two shapes: one rounded and blobby, one spiky and angular. Ask people which is “bouba” and which is “kiki”. The overwhelming majority give the same answer, matching bouba to the round shape and kiki to the spiky one, across ages, cultures, and languages.

The result is old. Wolfgang Köhler reported it in 1929 using the invented words takete and maluma, and V. S. Ramachandran and Edward Hubbard revived it in 2001 with the bouba and kiki labels that stuck. What it demonstrates is narrow but important: the link between a sound and a quality is not purely arbitrary. Something about the shape of your mouth when you say “kiki”, and about the abrupt way the k stops the air, lines up with the idea of angularity.

Be careful what you take from it. The experiment matches sounds to shapes, not to purchase decisions, and nobody has shown that a spiky-sounding name sells more software. The correct conclusion is the modest one: a name arrives carrying a feeling before it carries a meaning, and you may as well choose that feeling on purpose.

What the brand-name research found

Two studies do most of the work in this field, and both are worth knowing by name so you can tell the evidence from the folklore that surrounds it.

• Klink (2000)Published in Marketing Letters as “Creating Brand Names With Meaning: The Use of Sound Symbolism”. Participants shown invented brand names inferred product attributes from the sounds alone, judging front-vowel names as smaller, lighter, and faster than back-vowel names for the same product category.
• Yorkston & Menon (2004)Published in the Journal of Consumer Research as “A Sound Idea: Phonetic Effects of Brand Names on Consumer Judgments”. Two invented ice cream brands, Frish and Frosh, differing only in the vowel. Participants rated the back-vowel Frosh as smoother, creamier, and richer, which is exactly what the sound-symbolism prediction says should happen.

That is a genuinely useful finding: a vowel can shift how a product is perceived before anyone tastes it. It is also, deliberately, a laboratory result. The names were invented so that nothing else could interfere, which is good science and a poor model of a supermarket aisle.

The five sound levers you actually control

Strip the research down to what you can act on and there are five levers. Most naming conversations use all five without naming any of them, which is why they go in circles.

• Stops versus continuantsStops (p, t, k, b, d, g) cut the airflow dead, so they read as sharp, fast, and precise: Kodak, PayPal, Pepsi. Continuants (s, f, m, l, n, v) let the sound run, so they read as smooth, soft, and calm: Lumin, Serena, Villa. Neither is better. Pick the one that matches what the product is supposed to feel like, and be aware you are making the choice whether or not you notice it.
• Front versus back vowelsVowels formed at the front of the mouth (the i in “bit”, the e in “bet”) are consistently associated with small, light, fast, and sharp. Vowels formed at the back (the o in “boat”, the u in “boot”) go with large, heavy, slow, and rich. This is the single most replicated finding in the brand-name research, and it is why a low-fat drink and a premium ice cream want different vowels.
• Repetition and rhythmRepeated sounds are easier to store and to say: Coca-Cola, KitKat, PayPal, TikTok. Alliteration and reduplication buy you fluency almost for free, and fluency is one of the two things memorability actually runs on. The cost is that reduplicated names can read as playful, which is wrong for some categories.
• Where the stress landsA two-syllable name with the stress on the first beat behaves like a single unit and gets repeated intact. Move the stress later and the name starts feeling like a phrase. Stress placement is also the part of a name most likely to shift when it crosses a border, which is why a name can be perfectly safe abroad and still be said three ways.
• Clusters and the travel taxConsonants stacked together (str, chr, pfl, cks) give a name texture in English and cost it dearly elsewhere. Languages built on open syllables insert vowels to break clusters apart, so a crisp two-beat English name can arrive as four or five beats abroad. If you plan to sell in one market, spend the texture. If you plan to sell in six, do not.

Length interacts with all five: two syllables is where most sticky names live, and the reasons are in how long should a brand name be.

A 10-minute sound audit for your shortlist

Run every candidate through these five steps in order. The first four take two minutes each and need nothing but a colleague; the fifth is where opinion turns into a score.

1. Say it in a noisy roomNames are exchanged in bars, on bad calls, and across open-plan offices. Say each candidate out loud with background noise and see which ones survive. Stops survive noise better than soft consonants, which is a real argument for at least one hard sound in the word.
2. Run the dictation testSay the name once to someone who has never seen it and ask them to type it. Every spelling that comes back is a spelling that will collect a share of your traffic, your emails, and your search results. If two plausible spellings exist, you have a decision to make, not a quirk to enjoy.
3. Check the mood against the productWrite down the three adjectives you want the product to feel like, then ask whether the sounds point the same way. A name full of back vowels and soft continuants will feel rich and slow, which is excellent for a spa and wrong for a payments API. Mismatch is not fatal, but it should be deliberate.
4. Have a non-native speaker read it coldHand the written name to someone who has never heard it and does not share your first language. Listen for where the stress falls, which consonants get rebuilt, and how many beats the word takes. This is the cheapest possible version of an international launch.
5. Score it, then stop arguingSound is one of four things that decide whether a name works. Run the shortlist through a check that also covers domain availability, memorability, and cross-language safety, and let the gaps do the arguing. A name that sounds beautiful and cannot be owned is not a candidate.

Two of those steps deserve their own reading. The full battery of pre-launch checks is in how to test a brand name, and the international screen is in the cross-language safety checklist.

Reading real names for their sounds

The fastest way to internalise the levers is to run them over names you already know. These readings are interpretations, not claims about what the founders intended, and in several documented cases the founders intended nothing of the sort.

• KodakTwo hard k stops bracketing an open vowel: precise, mechanical, impossible to soften. George Eastman chose the K deliberately because he thought it a strong, incisive letter, which makes this the rare case where the intent is on the record. The full story is in why is it called Kodak.
• SonyTwo open syllables, no clusters, nothing to trip on: a word engineered so that any language could say it the same way. Sound as a border-crossing strategy rather than a mood, told in why is it called Sony.
• StarbucksA designer’s hunch that “st” sounds powerful drove the entire search, and the meaning was attached afterwards. It also carries the cluster tax the moment it leaves English, as the origin story works through.
• GoogleBack vowels and soft g sounds give it a round, friendly, slightly silly shape, which is a strange fit for a search algorithm and a perfect one for a consumer brand. See why is it called Google.

Where sound symbolism should not decide

This is the section the rest of the internet leaves out, and it is the one that will save you from a bad decision. Sound symbolism is real, replicated, and much weaker than the confident naming posts imply.

• The studies use invented namesFrish and Frosh were made up for the experiment precisely so nothing else could influence the judgement. Your name will compete with a price, a package, a review score, and a friend’s recommendation, all of which are stronger signals than a vowel.
• The effects are small and situationalThese are measurable tendencies across many participants, not rules that decide individual purchases. Sound symbolism is a tiebreaker between candidates that are otherwise equal, and it is a terrible reason to overrule a check you can actually fail.
• The associations are not universalMuch of the research was run with speakers of a handful of languages. Some effects appear to travel widely and others do not, so treat a sound-based intuition as a hypothesis about your market rather than a fact about humanity.
• A great sound cannot rescue a taken nameIf the exact-match domain is gone, the string is unspellable, or the word means something unfortunate in a market you sell in, no amount of phonetic elegance repairs it. Sound is the last check to apply, not the first.

The practical rule that falls out of this: use sound to generate and to break ties, use checks to eliminate. A shortlist assembled by ear and then filtered by domain availability, spelling, and cross-language behaviour will beat a shortlist chosen entirely by either method on its own.

Frequently asked questions

What is sound symbolism in brand names?

Sound symbolism is the tendency for particular speech sounds to carry consistent associations regardless of what the word means. Front vowels tend to suggest small, light, and fast; back vowels suggest large, heavy, and rich; hard stops feel sharp and precise while soft continuants feel smooth. Brand naming uses those tendencies to make a name feel like the product before anyone explains it.

What is the bouba/kiki effect?

It is the finding that when people are shown a round shape and a spiky shape and asked which is “bouba” and which is “kiki”, the overwhelming majority match bouba to the round one. Wolfgang Köhler reported the effect in 1929 using the words takete and maluma, and V. S. Ramachandran and Edward Hubbard revived it in 2001 with the bouba and kiki labels. It shows that sounds carry shape associations that are not arbitrary.

Does the sound of a brand name really affect sales?

It affects perception, which is not the same thing. Controlled studies such as Yorkston and Menon (2004), which compared the invented ice cream names Frish and Frosh, found people rated the back-vowel name as creamier and richer. Those were invented names in a lab with nothing else to judge. In a real market the price, the packaging, and the reviews outweigh the vowels, so treat sound as a tiebreaker rather than a growth strategy.

Which sounds make a brand name feel fast or premium?

Fast and light usually comes from front vowels and hard stops: short i and e sounds with k, t, or p. Rich and premium usually comes from back vowels and softer continuants: o and u sounds with l, m, s, or v. The practical move is to write down the three adjectives you want the brand to feel like and check whether your candidate’s sounds point the same way.

Should I choose a brand name based on how it sounds?

Partly. Sound decides how a name feels and how well it survives a noisy room, and it is one of the few properties you cannot change later. It is still only one of four checks: a beautiful-sounding name with no available domain, an ambiguous spelling, or a collision in a market you sell in is not a usable name. Use sound to choose between candidates that have already passed the checkable tests.