1. to tighten again or make tighter after becoming loose

Examples

• The mechanic had to retighten the bolts after the vibration loosened them.
• She retightened her shoelaces before continuing the hike.
• The contractor will retighten all the screws in the deck railing.
• You should retighten the jar lid to keep the contents fresh.
• The technician retightened the cable connections to improve the signal.
• After the earthquake, we had to retighten several loose fixtures around the house.