Definition of side work in US English:

side work

noun

  • 1A fortification or other defensive structure protecting the side of a position, body of troops, etc. Later only in plural Compare "flanker". Now historical.

  • 2Additional or subsidiary work; specifically (informal, in a restaurant, etc.) tasks such as setting tables, polishing silverware, etc., carried out by waiting staff in addition to their main work of serving customers.

Origin

Mid 17th century. From side + work.

Pronunciation

side work

/ˈsʌɪd wəːk/