Definition · Plain-language
Homonyms
Homonyms are words that sound alike or are spelled alike but have different, unrelated meanings — an umbrella term covering homophones and homographs.
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The umbrella term for sound-alikes and look-alikes
Homonym comes from Greek roots meaning "same name". In its widest use it labels any words that coincide in form — spelling, sound, or both — yet differ in meaning. This makes homonym a parent category for two narrower terms: homophones, which share pronunciation (their, there, they’re), and homographs, which share spelling (the bow of a ship versus a bow tied in ribbon). Some linguists reserve homonym for the strictest case, where words match in both spelling and sound, such as bank the riverside and bank the financial institution. Both the broad and narrow uses are widely accepted.
Homonyms versus polysemy
Homonyms are distinct words that happen to share a form, usually with unrelated origins — bat the animal and bat the club arrived in English by different routes. This differs from polysemy, where a single word has several related senses, such as the mouth of a person and the mouth of a river, which share an underlying image. Dictionaries often signal the difference by listing true homonyms as separate headwords with their own etymologies, while listing the senses of a polysemous word under one entry. The line between the two can be subtle, and editors do not always agree.
Why homonyms matter
Homonyms are a rich source of puns, riddles and wordplay, because a single form can be read in two ways. They also create genuine ambiguity: a sentence such as "I went to the bank" relies on context to tell the reader which meaning is intended. For learners of English, homonyms are a common source of error, since the same spelling or sound can hide quite different words. Knowing the sub-types — homophone, homograph and the strict same-spelling-and-sound homonym — gives a precise vocabulary for describing exactly how two words coincide.
Key facts
At a glance
- Definition: words sharing spelling or pronunciation but differing in meaning
- Origin: Greek homos (same) + onoma (name) — "same name"
- Umbrella for: homophones (same sound) and homographs (same spelling)
- Strict sense: words matching in both spelling and sound (bank/bank)
- Contrast: polysemy — one word with several related senses
- Used in: puns, riddles and wordplay
Common misconceptions
What people often get wrong
Often heard: Homonyms must be spelled and pronounced exactly the same.
Actually: In the broad sense, homonyms only need to share spelling or pronunciation, not both. The term acts as an umbrella covering homophones (same sound, e.g. flour/flower) and homographs (same spelling, e.g. lead the metal and lead a team).
Often heard: Homonyms and polysemous words are the same thing.
Actually: Homonyms are separate words that happen to share a form, usually with unrelated origins. Polysemy is one word with several related meanings, such as the mouth of a person and the mouth of a river.
Often heard: Homonym, homophone and homograph all mean the same.
Actually: Homonym is the umbrella term. A homophone shares pronunciation; a homograph shares spelling. A pair can be one, the other, or both at once.
Going deeper
