noun
plural gears
[noncount] supplies, tools, or clothes needed for a special purpose
b informal :clothes
[count] :a toothed wheel in a machine
a part that connects the engine of a vehicle or the pedals of a bicycle to the wheels and controls the speed at which the wheels turn [count]
change/shift/switch gears
US or Brit change gear
to move from one level or area of activity to another
get in gear
or get (something) in gear
informal :to start working or doing something in a more energetic and effective way
in/into high gear
see high gear
verb
gears; geared; gearing
[+ obj] :to make (something) suitable for a particular use or type of person - usually used as (be) geared
gear up
[phrasal verb]
gear up or gear (someone) up or gear up (someone) :to get ready or to cause (someone) to get ready for something or to do something