Open English Wordnet
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Verbs
(v)
tighten
,
fasten
make tight or tighter
“Tighten the wire”
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(v)
tighten
become tight or tighter
“The rope tightened”
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(v)
stiffen
,
tighten
,
tighten up
,
constrain
severely restrict in scope or extent
“tighten the rules”
,
“stiffen the regulations”
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(v)
reduce
,
tighten
narrow or limit
“reduce the influx of foreigners”
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