Definition of understood:
distinguished, unsaid, concerted, interpreted, pledged, unknown, mute, unuttered, unsounded, taken, dumb, overlooked, soundless, still, silent, comprehended, experienced, tacit, show, appreciated, explained, apprehended, inferred, mum, settled, endorsed, implicit, implied, wordless, unspoken, inexplicit.
- believed (part of speech: verb)
- learned (part of speech: verb)
- knew (part of speech: verb)