navigational aid (noun) radio compass: radio direction finder
Sinonime: cast, chuck, clear out, deep-six,
deposit,
discard,
discharge, dispose of,
ditch,
drain, eject,
empty, evacuate,
expel,
exude,
fling, fling down,
get rid of, jettison,
junk,
leave, let fall,
scrap, throw down, throw out, throw overboard,
tip, unload, unpack
Antonime: hold,
keep,
maintain,
save