tense up

Definitions of tense up
  1. verb
    become tense, nervous, or uneasy
    synonyms: tense
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    decompress, loosen up, relax, slow down, unbend, unwind
    become less tense, rest, or take one's ease
    type of:
    change state, turn
    undergo a transformation or a change of position or action
  2. verb
    cause to be tense and uneasy or nervous or anxious
    synonyms: strain, tense
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    loosen up, make relaxed, relax, unlax, unstrain, unwind
    cause to feel relaxed
    extend, stretch
    extend one's limbs or muscles, or the entire body
    stretch out completely
    crane, stretch out
    stretch (the neck) so as to see better
    type of:
    act physically on; have an effect upon
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