oc

1. variant of ob- (by assimilation) before c: occident.

1. ocean.

Philately.

1. original cover.

1. overcharge.

1. Architecture. on center. See center(def 30).
2. in the work cited.

abbreviation for

1. Officer Commanding
2. Officer of the Order of Canada

abbreviation for

1. overcharge

assimilated form of ob- before -c-.