combination

US /ˌkɑmbəˈneʃən/

UK /ˌkɒmbɪ'neɪʃn/

B1
n.NounSeries of letters or numbers needed to open a lock
We couldn't get in because he forgot the combination to unlock the door
n.NounAct or result of mixing things together
I like the dessert combination of dark chocolate and orange
n.NounA mixture or blend of different things.
The combination of flavors in this dish is exquisite.
n.NounA selection of items from a collection, where the order of selection does not matter.
In mathematics, a combination is a way of selecting items from a collection, such that the order of selection does not matter.
n.NounThe process of two or more substances chemically uniting.
The chemical combination of hydrogen and oxygen produces water.

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