friction
Say it: FRIK-shun /ˈfrɪkʃ(ə)n/ · noun
What “friction” means
Resistance that slows surfaces sliding against each other.
More precisely: Resistance when surfaces rub together; also, anything that slows or annoys, like extra steps in a process.
When to use it
In science or practical conversation, for rubbing resistance; at work, for annoying steps that slow people down.
Memory trick
Rub your palms together: the resistance and warmth help you remember friction.
It can also mean
It also means difficulties or disagreements that make a process or relationship less smooth.
Similar words
resistance, drag, hindrance
Quick check
A sled glides easily on ice but slows sharply when it reaches rough gravel. What causes the extra resistance?
friction or inertia?
Show the answer
friction
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