A distinguishing characteristic. / An official marking made by a trusted party, usually an assay office, on items made of precious metals.

To provide or stamp with a hallmark.

Alternative spelling of half brother

A female sibling sharing a single parent.

A male sibling sharing a single parent, as distinguished from a full brother or brother-german, from a step-brother, or from a brother-like figure such as a blood brother.

Alternative spelling of half sister

(transitive, Cockney rhyming slang) To pinch, to steal.

(transitive) To reduce to half the original amount. / (transitive) To divide into two halves. / (transitive) To make up half of.

A unit of volume used for liquids equal to half of a pint. / Half a pint of beer or other drink. / (colloquial) A small or short person. / (colloquial) A small child.

(poetic) A kingfisher said in classical mythology to nest on the sea, thereby calming the waters. / The dead body of such a bird, said in Tudor times to act as a weather vane when hung from a beam.