tightens

词形变化：

名词: tightener | 动词过去式: tightened | 动词过去分词: tightened | 动词现在分词: tightening | 动词第三人称单数: tightens |

同义词：

stiffen | tauten | squeeze | constrict | tense | tighten up | screw | fasten | press | anchor | secure | contract | crush | compress | choke | fix | brace | telescope | screw in | screw down | make fast | lace up | tie up | firm up | close up | lock up | lock | up | firm | close | fast | tie | make | lace | together | down | force | in | reduce | constrain |

反义词：

loosen |