(idiomatic, dated, euphemistic) Menopause.

A sudden, discontinuous change.

To change or exchange repeatedly. / To rearrange, reconfigure, or customise.

(idiomatic) To change one's clothing (usually for a specific purpose).

To exchange positions (with another)

(intransitive, baseball) To throw a pitch at a much slower than expected speed. / (intransitive) To confuse someone by doing something unexpected or in an unexpected way.

plural of step change

plural of breaking change

plural of sound change

(phonology) Any process of language change that affects pronunciation (phonetic change) or sound system structures (phonological change)