Suggestion in Malayalam

Malayalam words whose English meaning includes “suggestion”:

ചോദകം (chodakam) — Suggestion, direction, invitation, inspiration, inducement.
ചോദനം (chodanam) — Inducement, inspiration, stimulus, suggestion.
ധ്വനനം (dhwananam) — Sounding, making a sound, hinting, suggestion.
നിര്‍ദ്ദേശം (nirddesham) — Suggestion, advice, direction, instruction, order, hint, proposal.