Meaning of ROUTINE in English

ROUTINE

[noun] - a habitual or fixed way of doing thingsThere's no set/fixed routine at work - every day is different. [C]He checks under the car for bombs as a matter of routine. [U]An exercise/dance routine is a set of particular movements. [C]He went into his usual 'I'm the head of the family' routine (= habitual way of speaking). [C](specialized) A routine is also a part of a computer program that does a particular operation.

Cambridge English vocab.      Кембриджский английский словарь.