1 B2 neutral
To use a nail file or metal file to smooth, reduce, or shape nails or a hard surface.
"She filed down her broken nail so it wouldn't catch on her clothes."
separable
file down
B2 neutral separable transitive
To make something smaller, smoother, or sharper by rubbing it with a file.
In plain English
To use a rough tool to make something smaller or smoother.
What does "file down" mean?
2 meanings, ordered from most common to least. Color-coded by CEFR level.
2 B2 neutral
To reduce a sharp or rough edge on a metal or hard object using a file.
"The locksmith filed down the edge of the key until it fit the lock perfectly."
separable
Literal vs figurative
Words literally mean
To rub something down with a file (a tool with a rough surface).
Actually means
To use a rough tool to make something smaller or smoother.
Usage tip
A practical, everyday verb used in DIY, beauty (nail care), and metalworking contexts. The object typically refers to nails, metal edges, or rough surfaces.
Words that pair with "file down"
Natural word combinations native speakers use most often.
nails edge rough spot metal key teeth
How to conjugate "file down"
The five tense forms you'll use most often.
Base
file down
I/you/we/they
3rd person
files down
he/she/it
Past simple
filed down
yesterday
Past participle
filed down
have + pp
-ing form
filing down
continuous
Hear "file down" in the wild
Listen to native speakers using "file down" in real YouTube videos — click a clip to watch it on Looplines.
Keep exploring
Jump to every phrasal verb built on the same verb, particle, or level.