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rev

1 rev /ˈrɛv/ verb
revs; revved; revving
1 rev
/ˈrɛv/
verb
revs; revved; revving
Britannica Dictionary definition of REV
[+ object]
: to cause (an engine) to run more quickly : to increase the revolutions per minute of (a motor in a vehicle)
often + up

rev up

[phrasal verb] informal
: to become more active
rev (someone or something) up or rev up (someone or something) : to make (someone or something) more active or effective
see also revved up
2 rev /ˈrɛv/ noun
plural revs
2 rev
/ˈrɛv/
noun
plural revs
Britannica Dictionary definition of REV
[count] informal
: a complete turn of an engine part : revolution usually plural