- (prep.) Denoting the agent or person by whom or thing by which, anything is or is done; by.
- (prep.) Denoting the material of which anything is composed or that which it contains; as, a throne of gold; a sword of steel; a wreath of mist; a cup of water.
- (prep.) In a general sense, from or out from; proceeding from; belonging to; relating to; concerning; -- used in a variety of applications; as:.
- (prep.) Denoting that by which a person or thing is actuated or impelled; also, the source of a purpose or action; as, they went of their own will; no body can move of itself; he did it of necessity.
- (prep.) Denoting passage from one state to another; from.
- (prep.) During; in the course of.
- (prep.) Denoting part of an aggregate or whole; belonging to a number or quantity mentioned; out of; from amongst; as, of this little he had some to spare; some of the mines were unproductive; most of the company.
- (prep.) Denoting that from which anything proceeds; indicating origin, source, descent, and the like; as, he is of a race of kings; he is of noble blood.
- (prep.) Denoting relation to place or time; belonging to or connected with; as, men of Athens; the people of the Middle Ages; in the days of Herod.
- (prep.) Denoting identity or equivalence; -- used with a name or appellation, and equivalent to the relation of apposition; as, the continent of America; the city of Rome; the Island of Cuba.
- (prep.) Denoting nearness or distance, either in space or time; from; as, within a league of the town; within an hour of the appointed time.
- (prep.) Denoting possession or ownership or the relation of subject to attribute; as, the apartment of the consul: the power of the king; a man of courage; the gate of heaven.
- (prep.) Denoting reference to a thing; about; concerning; relating to; as, to boast of one's achievements.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). of. Retrieved September 21, 2026, from http://smartdefine.org/of/definitions/2038468 |
| Chicago | Webster's. 2011. "of" http://smartdefine.org/of/definitions/2038468 (accessed September 21, 2026). |
| Harvard | Webster's 2011, of, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/of/definitions/2038468>. |
| MLA | Webster's. "of" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/of/definitions/2038468> |