gear

US /ɡɪr/

UK /ɡɪə(r)/

B1
v.t./i.Verb (Transitive/Intransitive)To aim at or prepare yourself for something
I have to gear myself for the most important contest in my life, the Olympic Games
n. (c./u.)Noun (Countable/Uncountable)A speed selector connected to an engine
On highways he was driving in top gear
n. (c./u.)Noun (Countable/Uncountable)Special clothes you use for a purpose
You can't go hunting in jeans and a T-shirt, you need a hunting gear
n. (c./u.)Noun (Countable/Uncountable)Toothed wheel shifting power from engine to wheels
The largest gear on my bike needs to be replaced so I can ride again

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