Sound Symbolism in Names

Abstract

Sound symbolism refers to the hypothesis that speech sounds carry inherent meaning independent of the words they compose. This review examines foundational studies from Sapir (1929) and Köhler (1929), and traces the development of research through Ramachandran & Hubbard's neurological models (2001) to modern cross-cultural validation studies. We find robust evidence for size-sound symbolism (high vowels for small objects, low vowels for large) and shape-sound symbolism (the Bouba-Kiki effect), with implications for naming conventions and brand perception.

1. Introduction

For much of the 20th century, Saussurean linguistics held that the relationship between a word's sound (signifier) and its meaning (signified) was fundamentally arbitrary. A "dog" could just as easily be called a "blick." However, a growing body of evidence suggests that certain sound-meaning mappings are not arbitrary at all, but are grounded in cross-modal perceptual associations shared by humans (and possibly other species).

This phenomenon is known as sound symbolism or phonosemantics. If names are not entirely arbitrary labels, then the sounds within a name may carry subliminal connotations—of size, shape, warmth, or competence—that influence first impressions.

2. Key Studies & Findings

2.1 Sapir (1929): The Mil-Mal Experiment

Edward Sapir's foundational experiment asked English speakers to judge which of two nonsense words, "mil" or "mal," referred to a larger table. Over 80% of participants chose "mal" as larger. Sapir attributed this to the acoustic properties of the vowels: /a/ is a low, open vowel produced in a large oral cavity, while /i/ is a high, closed vowel produced in a small one.

"The 'a' of 'father,' with its open, relaxed, and sonorous character, is felt to be intrinsically more expressive of bigness than the 'e' of 'feet.'"
— Sapir, E. (1929). A Study in Phonetic Symbolism. Journal of Experimental Psychology.

DOI: 10.1037/h0070931

2.2 Köhler (1929/1947): Takete vs. Baluma

Wolfgang Köhler presented participants with two abstract shapes—one spiky, one rounded—and asked which was "takete" and which was "baluma." An overwhelming majority mapped the spiky shape to "takete" (plosive, front vowels) and the rounded shape to "baluma" (sonorant, back vowels). This is the historical predecessor to the modern "Bouba-Kiki" paradigm.

2.3 Ramachandran & Hubbard (2001): A Neurological Basis

Ramachandran and Hubbard proposed that sound symbolism arises from cross-activation between adjacent brain areas—particularly the auditory cortex and the fusiform gyrus (involved in visual shape processing). This "synesthetic bootstrapping" hypothesis suggests that the Bouba-Kiki effect is not learned but is a consequence of neural architecture.

DOI: 10.1093/brain/awh040

2.4 Modern Replications

The Bouba-Kiki effect has been replicated across numerous languages and cultures, including the Himba of Namibia, Tamil speakers in India, and even pre-verbal infants, suggesting the effect is not dependent on orthography or cultural learning.

DOI (Bremner): 10.1177/0956797612457804

3. Application in KnowYourName Engine

Our analysis engine calculates a "Bouba-Kiki Score" (0-100) for each name based on the ratio of:

• Bouba-like features: Sonorants (M, N, L, R), rounded vowels (O, U), labial consonants.
• Kiki-like features: Plosives (K, T, P, D), fricatives (S, Z), front vowels (I, E).

A high score suggests the name evokes perceptions of softness, roundness, and approachability. A low score suggests sharpness, angularity, and potentially dominance.

4. Limitations

While sound symbolism is robust, it is not deterministic. Context, personal associations, and cultural familiarity with a name can override symbolic effects. Furthermore, most research has focused on isolated nonsense words; the application to real-world names with existing semantic content remains an active area of investigation.