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

The number represented by the Arabic numeral 1; the numerical value equal to that cardinal number. / (number theory) The first positive number in the set of natural numbers.

Used in contrast to anyone, someone or everyone: not one person; nobody.

Of a period of time, being particular. / Being a single, unspecified thing; a; any. / Sole, only. / Whole, entire. / In agreement. / The same. / Being a preeminent example.

Obsolete spelling of only

(Singapore, Philippines, Malaysia, transitive, colloquial); Third-person singular simple present indicative form of on

a ketone / any similar compound containing a carbonyl functional group

Belonging to one.

Contraction of one is.

Not any person or thing whatsoever.