oncer

As nouns the difference between oner and oncer

is that oner is an extraordinary individual while oncer is a one-pound note.

As an adverb oncet

is (southern and south midland us|regional) once.

As a noun oncer is

(informal|historical) a one-pound note.

As nouns the difference between oncer and ouncer

is that oncer is (informal|historical) a one-pound note while ouncer is (in combination) something that weighs, or holds, a specified number of ounces.

As a noun oncer

is (informal|historical) a one-pound note.

As an adjective boncer is

(australia|new zealand) remarkable; wonderful.

As an adverb once

is one and only one time.

As a conjunction once

is as soon as; when; after.

As a noun oncer is

a one-pound note.