noun
process or manner of functioning or operating
Synonyms
Examples
- the power of its engine determines its operation
- the plane's operation in high winds
- they compared the cooking performance of each oven
- the jet's performance conformed to high standards
adjective
performing or able to perform its regular function
Examples
- a functioning flashlight
verb
perform as expected when applied
Synonyms
Examples
- The washing machine won't go unless it's plugged in
- Does this old car still run well?
- This old radio doesn't work anymore
verb
serve a purpose, role, or function
Synonyms
Examples
- The tree stump serves as a table
- The female students served as a control group
- This table would serve very well
- His freedom served him well
- The table functions as a desk
verb
perform duties attached to a particular office or place or function
Synonyms
Examples
- His wife officiated as his private secretary