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double (EN)
adjective, pronoun, adverb, noun, verb

adjective “double”

base form double, non-gradable
  1. twice as big in size or amount
    She ordered a double portion of ice cream.
  2. consisting of two similar or identical parts
    The house has double doors at the entrance.
  3. designed for two people
    They reserved a double room at the hotel.
  4. having two layers; folded over
    The coat is made with double fabric for warmth.
  5. combining two things; ambiguous
    His comments were full of double meanings.
  6. deceitful or acting in two different ways; hypocritical
    She was leading a double life as a spy.
  7. (botany) of a flower, having more petals than usual
    The garden features double tulips.
  8. (music) sounding an octave lower than usual
    He plays the double bass in the orchestra.

pronoun “double”

double
  1. a number or amount that is twice as much as usual
    She paid double for express shipping.

adverb “double”

double
  1. in twos
    I am seeing double right now.
  2. to twice the extent
    If you don't book now, you will have to pay double.

noun “double”

singular double, plural doubles
  1. a person who looks exactly like another person, especially an actor's stand-in
    The action scenes were performed by the actor's double.
  2. a thing that is exactly like another; a duplicate
    He found a double of his lost watch at the shop.
  3. a drink with twice the usual amount of alcohol
    After the long day, he ordered a double.
  4. (baseball) a hit that allows the batter to reach second base
    The batter hit a double to bring in two runs.
  5. (sports) the achievement of winning two major competitions in the same season
    The team celebrated the double in the league and cup.
  6. (darts) the outer ring of the dartboard that scores double points
    She won the game by hitting a double.
  7. (programming) a data type representing a double-precision floating-point number
    Use a double for more precise calculations.

verb “double”

infinitive double; he doubles; past tense doubled; past part. doubled; ger. doubling
  1. to make something twice as much; to multiply by two
    They hope to double their income next year.
  2. to become twice as much in size or amount
    Attendance at the event doubled from last year.
  3. to fold or bend something over onto itself
    She doubled the towel to make it thicker.
  4. (with "as") to serve two roles or functions
    His study doubles as a guest room.
  5. (with "for") to act as a substitute or stand-in for another person
    The actor had to double for his colleague due to illness.
  6. (baseball) to hit a double; to reach second base on a hit
    He doubled to left field, putting himself in scoring position.
  7. to bend over suddenly, often because of pain or laughter
    He doubled over after hearing the hilarious story.