Any substance formed as part of a series of chemical reactions that is not the end-product.
An intermediary.
Anything in an intermediate position.
To mediate, to be an intermediate.
To arrange, in the manner of a broker.
Being between two extremes, or in the middle of a range.
Resembling or tasting of rum.
A card game with many rule variants, conceptually similar to mahjong.
A rum-drinking alcoholic.