doublest

a base hit on which the batter stops safely at second base; "he hit a double to deep centerfield"

a stand-in for movie stars to perform dangerous stunts; "his first job in Hollywood was as a double for Clark Gable"

a quantity that is twice as great as another; "36 is the double of 18"

increase twofold; "The population doubled within 50 years"

hit a two-base hit

bend over or curl up, usually with laughter or pain; "He doubled and vomited violently"

bridge: make a demand for (a card or suit)

make or do or perform again; "He could never replicate his brilliant performance of the magic trick"

having more than one decidedly dissimilar aspects or qualities; "a double (or dual) role for an actor"; "the office of a clergyman is twofold; public preaching and private influence"- R.W.Emerson; "every episode has its double and treble meaning"-Frederick Harrison

used of homologous chromosomes associated in pairs in synapsis

to double the degree; "she was doubly rewarded"; "his eyes were double bright"