liv ‧ en /ˈlaɪv ə n/ BrE AmE verb
[ Word Family: verb : ↑ live , ↑ outlive , ↑ relive , ↑ liven , ↑ up ; adjective : ↑ live , ↑ lively , ↑ living , ↑ liveable ; noun : ↑ liveliness , ↑ living , ↑ livelihood ; adverb : ↑ live ]
[ Date: 1700-1800 ; Origin: life ]
liven up phrasal verb
1 . to become more exciting, or to make an event become more exciting:
The party really livened up when Mattie arrived.
liven something ↔ up
Why don’t we invite Jane? That’ll liven things up!
2 . liven something ↔ up to make something look, taste etc more interesting SYN brighten up :
Why not liven up the room with some flowers?
3 . to become more interested or excited, or to make someone feel like this:
After a few drinks she livened up a little.