ser ‧ vice ‧ a ‧ ble /ˈsɜːvəsəb ə l, ˈsɜːvɪsəb ə l $ ˈsɜːr-/ BrE AmE adjective
[ Word Family: noun : ↑ servant , ↑ serve , ↑ server , ↑ service , ↑ disservice , the services, ↑ serving , ↑ servery , ↑ servicing , ↑ servility , ↑ servitude ; adjective : ↑ serviceable , ↑ servile , ↑ serving ; verb : ↑ serve , ↑ service ]
ready or able to be used SYN usable :
Some of these old tools are still serviceable.