As adjectives the difference between champagne and champagnelike
is that champagne is of a very pale brownish-gold color, similar to that of champagne while champagnelike is resembling or characteristic of champagne.
As a noun champagne
is (uncountable) a sparkling white wine made from a blend of grapes, especially chardonnay and pinot, produced in champagne by the.
As a verb champagne
is to drink champagne.