doubling

Plural: doublings

Noun

• increase by a factor of two
  • "doubling with a computer took no time at all"
• raising the stakes in a card game by a factor of 2
• The process or an instance of making something double; a multiplication by two.
• The act of turning around, or doubling back.
• A pleat or fold.
• A trick; double-dealing.

Verb

• increase twofold
• hit a two-base hit
• bend over or curl up, usually with laughter or pain
• do double duty; serve two purposes or have two functions
• bridge: make a demand for (a card or suit)
• make or do or perform again
• present participle and gerund of double

Synonyms

double, double over, double up, duplicate, reduplicate, repeat, replicate