simple past tense of be a one

Contraction of one is.

plural of one / Obsolete form of one's.

Obsolete spelling of only

Initialism of Office for National Statistics.

Belonging to one.

To cause to become one; to gather into a single whole; to unite.

(impersonal pronoun, indefinite) One thing (among a group of others); one member of a group.

The digit or figure 1. / (mathematics) The neutral element with respect to multiplication in a ring. / (US) A one-dollar bill. / One o'clock, either a.m. or p.m.

a ketone / any similar compound containing a carbonyl functional group