To lay on; to put one thing to another; as, to apply the hand to the breast; to apply medicaments to a diseased part of the body.

To use or employ for a particular purpose, or in a particular case; as, to apply a sum of money to the payment of a debt.

To put, refer or use, as suitable or relative to something; as, to apply the testimony to the case.

To fix the mind; to engage and employ with attention; as, apply thy heart to instruction.

To address or direct; as, “Sacred vows applied to Pluto.” .

To betake; to give the chief part of time and attention; as, to apply one’s self to the study of botany. This is essentially the fourth sense.

To make application; to have recourse by request; as, to apply one’s self to a counsellor for advice. This is generally used intransitively; as, to apply to a counsellor.

To busy; to keep at work; to ply. Obs.

To suit; to agree; to have some connection, agreement or analogy; as, this argument applies well to the case.

To make request; to solicit; to have recourse, with a view to gain something; as, to apply to the president for an office; I applied to a friend for information.