Any material which is used for construction purposes.

A noun that refers to a substance.

(education, UK) A school subject combining elements of woodwork, metalwork and plastic-work, sometimes a module of a larger design and technology syllabus.

(historical) An ethereal substance once believed to fill spaces emptied of air (i.e. any vacuum) and to be capable of passing through solid objects.

A half-sister of one's mother. / A half sister-in-law of one's mother.

plural of maternal half aunt

A half-brother of one's mother. / A half brother-in-law of one's mother.

plural of maternal half-uncle

plural of raw material

plural of building material