retain
keep in possession or use;
keep or continue to have something

see another keyword links:
keep

use

continue

have

to keep
to retain
to store up
to save
to deposit

to keep, reserve
to stay, remain, detain

to retain
to reserve
reserved
reservation

to remember
retain in mind
recall to the mind

retain a childish heart
one's childish disposition remains

hold my own
retain my position of strength
in a challenging situation