Definition of button something up in English:

button something up

1 informal Complete or conclude something satisfactorily: they’ve buttoned up the league title by opening up a seven points gap
More example sentences
  • Once they do move that rotating structure away, it basically means the shuttle is buttoned up and ready to go, but as Kyra mentioned, NASA certainly keeping an eye on that faulty fuel sensor.
  • And just to button this final thought up, what evidence do we have that this is moving voters one way or another?
  • That sounds like there's some logic, you can button it up, if it comes down to simply extortion for money.
1.1 (often as adjective buttoned up) Repress or inhibit something: it was repressive enough to keep public opinion buttoned up
More example sentences
  • Perhaps it is because they are all buttoned up, just quite content to take a six figure salary without making any meaningful contribution, is that what we want?
  • Any white person expressing such ideas is obviously a buttoned up racist, ill at ease with the realities of multicultural Britain and its vibrant black youth culture.
  • Rivers, for his part, is every bit as self-conscious as Prior, but his sensuality remains buttoned up.
See parent entry: button

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Pronunciation: ˌəʊlɪˈadʒɪnəs
adjective
rich in, covered with, or producing oil; oily