(rare) Midday, noon. / (time/clock operation) Either a.m. or p.m.

A legendary creature, human male from the waist up, fishlike from the waist down.

(colloquial) thank you

An extra card or set of cards that is allowed to play at the end of various card games.

A businessman employed at, or a partner at a merchant bank. / (chiefly Britain, rhyming slang) A wanker. (In this sense, the term can also be abbreviated to merchant.)

A bank which provides financial services for businesses.

(chemistry) Pertaining to or derived from mercury. / (chemistry) Of a compound, containing mercury with an oxidation number of 1.

(obsolete, chemistry) Pertaining to or derived from mercury. / (chemistry) Specifically (of a compound), containing mercury with an oxidation number of 2. / (rare) Mercurial (of people).

In a cheerful or merry way.

(American spelling) Alternative spelling of mercury-vapour lamp