What does fingernail mean?
A fingernail is the hard, slightly curved plate of keratin that grows from the skin at the upper surface of each fingertip. Alongside its counterpart on the toes, it protects the delicate tissue beneath, aids fine manipulation, and serves as a convenient tool for scratching and gripping. Because fingernails are visible and easy to groom, they carry considerable cultural weight: people trim, file, paint, and polish them, and their condition is often read as a sign of personal tidiness or health. The verb-associated habit of biting one's fingernails has become shorthand for anxiety, making the word a common figure in everyday speech. In medicine, changes in fingernail colour, texture, or shape can signal underlying conditions, so clinicians routinely inspect them. Simple, concrete, and universally familiar, "fingernail" is a useful word precisely because it connects anatomy, grooming, and nonverbal expression in a single everyday term.
nounA fingernail is the hard, flat, translucent plate of keratin growing on the upper surface of the tip of each finger, serving to protect and support the sensitive fingertip.
- The hard keratin plate covering the upper surface of the tip of a finger.
- A single such plate regarded as an object of grooming or decoration, as in painting or manicuring.
"She tapped her fingernails impatiently on the table while waiting for the meeting to begin."
"He bit his fingernails whenever he felt nervous during exams."
"The manicurist shaped each fingernail carefully before applying a coat of red polish."
The plural "fingernails" is standard and commonly used, especially when referring to all of the nails on the fingers collectively, as in grooming or medical descriptions.
"Her fingernails were neatly trimmed and painted a pale shade of pink."
Your fingernails grow roughly 3.5 millimetres a month — about a centimetre every three months — and they grow faster on the hand you write with.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of fingernail
"Fingernail" is an English compound formed from two native Germanic elements: "finger," which derives from Old English "finger" and its Germanic relatives, and "nail," from Old English "nægl," the ancient Germanic word for both the metal fastener and the keratin plate. The pairing of "finger" with "nail" reflects the long-standing Germanic practice of naming body parts by compounding simple nouns. Cognate forms appear throughout the Germanic languages, and related compounds such as "thumbnail" and "toenail" extend the same pattern to other digits.
How fingernail is actually used
"Fingernail" is a neutral, everyday term used in both casual conversation and medical contexts; in anatomy it may be called simply a "nail." It contrasts informally with "toenail," and the compound "finger-" prefix distinguishes it from nails generally.
Easily confused with fingernail
A toenail is the corresponding keratin plate on a toe, whereas a fingernail grows on a finger.
The cuticle is the thin strip of skin at the base of the nail, not the hard plate itself.