Used to form plurals of some Hebrew loanwords ending in -a or -ah.

Obsolete spelling of oath

(politics) Abbreviation of other. / (advertising) Initialism of opportunity to hear.

Initialism of over the horizon: a form of radar that can detect targets at very long ranges, typically hundreds to thousands of kilometres, beyond the radar horizon.

plural of oth

Initialism of over-the-horizon backscatter (“a form of radar”).

See other (determiner) below. / Second. / Alien. / Different. / (obsolete) Left, as opposed to right.

(obsolete) Otherwise.

Not the one or ones previously referred to.

(transitive) To regard, label, or treat as an "other", as not part of the same group; to view as different and alien. / (transitive) To treat as different or separate; segregate; ostracise.