of-prefixvariant spelling of ob- assimilated beforef(as inoffend).ofpreposition
1expressing the relationship between a part and a whole.
2expressing the relationship between a scale or measure and a value.
expressing an age.
3indicating an association between two entities, typically one of belonging.
4expressing the relationship between a direction and a point of reference.
5expressing the relationship between a general category and something which belongs to such a category.
6expressing the relationship between an abstract concept and a noun denoting the subject or object of the underlying verb.
7indicating the relationship between a verb and an indirect object.
8indicating the material constituting something.
9N. Amer.expressing time in relation to the following hour.
Phrases
be ofpossess intrinsically or give rise to:this work is of great value.
Origin
OE, of Gmc origin.
Usage
It is a mistake to useofinstead ofhavein constructions such asyou should have asked. For more information, seeusageat have.