apply

Be pertinent or relevant or applicable.

“The same laws apply to you!”

Refer (a word or name) to a person or thing.

Avail oneself to.

“apply a principle”

Be applicable to; as to an analysis.

Apply to a surface.

Give or convey physically.

Ensure observance of laws and rules.

Put into service; make work or employ for a particular purpose or for its inherent or natural purpose.

“I apply this rule to get good results”

Apply oneself to.

“Please apply yourself to your homework”

Ask (for something).

“apply for a job”