tightenverb/ɐpɛʁˈtaɾ/mediuma·per·tarPortuguesEnglishEspanolFrancaisDefinitionTo make something tighter or more secure.Please tighten the screws.He tightened his grip.synsecurefastenantloosenCommon collocationstighten the belttighten the screwsEtymologyDo latim 'apertare'Related wordsapertoapertadoapertar-se