/ ˈfreʃn; NAmE / verb
1.
[ vn ] freshen sth (up) to make sth cleaner, cooler, newer or more pleasant :
The walls need freshening up with white paint.
The rain had freshened the air.
Using a mouthwash freshens the breath.
2.
[ vn ] freshen sth (up) ( especially NAmE ) to add more liquid to a drink, especially an alcoholic one
—see also top up
3.
[ v ] ( of the wind ) to become stronger and colder :
The wind will freshen tonight.
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PHRASAL VERBS
- freshen up | freshen yourself up