put aside
US /pʊt əˈsaɪd/
UK /pʊt əˈsaɪd/

1.
to save something, usually money or time, for a particular purpose
:
•
She tries to put aside a little money each month for her retirement.
•
We need to put aside some time to discuss this issue.
to save something, usually money or time, for a particular purpose