What does eyetooth mean?
An eyetooth is one of the four pointed canine teeth in a human mouth, so named because the upper canines sit directly beneath the eyes. In dentistry these teeth are more usually called canines or cuspids, and the term 'eyetooth' today survives chiefly in everyday speech and in idioms. By far its most familiar use is figurative: the expression 'to cut one's eyeteeth' originally referred to a young child growing these teeth, and has come to mean gaining one's first real experience of something difficult — as in 'she cut her eyeteeth on local journalism before writing for national papers.' The word carries a slightly old-fashioned, colloquial flavour, and it appears most naturally in the plural. For anyone interested in the vivid ways anatomy seeps into language, eyetooth is a small but instructive example: a precise dental term that evolved into a durable metaphor for hard-won maturity and practical know-how.
nounAn eyetooth is a canine tooth in the upper jaw, situated directly below the eye on each side; the term is also commonly applied to any canine tooth.
- A canine tooth of the upper jaw, directly beneath the eye.
- (By extension) any canine tooth.
"The dentist noted that her left eyetooth had come in slightly crooked."
"He cut his eyeteeth on small-town politics before running for statewide office."
"The orthodontist recommended a brace to bring the protruding eyetooth into line."
The plural is the more common form, especially in the idiom 'to cut one's eyeteeth.' The plural is pronounced with an /s/ sound: /ˈaɪtiːθz/.
"She cut her eyeteeth negotiating contracts for a small record label."
To 'cut your eyeteeth' once meant growing these fang-like teeth as a toddler — and came to mean gaining your first hard-won experience.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of eyetooth
Eyetooth is formed from the plain English compound of 'eye' and 'tooth,' reflecting the position of the upper canine directly under the eye. The compound has existed in English since at least the early modern period, when anatomical naming was largely vernacular. The idiom 'to cut one's eyeteeth' arose from the same source, since these are among the teeth that erupt in early childhood. Related compounds such as 'dogtooth' describe the same tooth by a different comparison, while the professional terms 'canine' and 'cuspid' derive from Latin and Greek roots respectively.
Related word forms
How eyetooth is actually used
Most often encountered in the plural, especially in the idiom 'to cut one's eyeteeth,' meaning to gain early experience. The literal anatomical use is somewhat old-fashioned or clinical; 'canine tooth' or 'cuspid' are more common in modern dentistry.
Easily confused with eyetooth
A sweet tooth is a fondness for sugary foods (metaphorical), whereas an eyetooth is an actual anatomical tooth — despite both being called 'teeth'.