Definition of making-up in US English:

making-up

noun

  • The action of making (something, someone, etc.) up; completion; compounding, composition; reconciliation; dressing up and disguising for the impersonation of a character; the application of make-up.

Origin

Early 16th century. From making + up, after to make up.

Pronunciation

making-up

/ˌmeɪkɪŋ ˈʌp/