take someone/something seriously

US /teɪk ˈsʌmwʌn/ˈsʌmθɪŋ ˈsɪriəsli/
UK /teɪk ˈsʌmwʌn/ˈsʌmθɪŋ ˈsɪriəsli/
"take someone/something seriously" picture
1.

to believe that someone or something is important and deserves attention

:
You need to take your studies seriously if you want to succeed.
Don't take his threats seriously; he's just trying to scare you.