(UK) A young herring.

The shaft or thill of a carriage.

Laughable or amusing through foolishness or a foolish appearance. / (of numbers, particularly prices) Absurdly large. / Good; pious. / Holy.

(now regional or colloquial) Sillily: in a silly manner.

(colloquial) A silly person. / (endearing, gently derogatory) A term of address. / (colloquial) A mistake.

(chemistry) A hard glassy mineral, SiO₂, occurring as quartz, sand, opal etc. Informally known as silica.

(chemistry, uncountable) A nonmetallic element (symbol Si) with an atomic number of 14 and atomic weight of 28.0855. / (chemistry, countable) A single atom of this element.

(slang) computing / (slang) computer processor / Abbreviation of silicon chip.

Silicon dioxide. / Any of the silica group of the silicate minerals.

A person who makes articles out of silver usually larger than jewellery.