decorate the house
do up
find something after looking for it in different places
track down
raise your voice so as to be heard
speak up
make something seem less serious than it is
play sth down
behave like an adult
grow up
become more relaxed, less serious
lighten up
to land (about a plane)
touch down
start living in a place where you intend to stay for a long time or become calmer
settle down
formally establish (e.g. a company)
set up
increase the volume
turn up
do or use less of something
cut down (on)
drive faster
speed up