sign, indication, nod, wink, hint, insinuation, innuendo, ambiguous expression, mysterious allusion, riddle, enigma

knower of secrets, the who know the mysteries

cryptographer

mixed with mystery

one who takes a hint, conversant with the ins and outs (of)

one who recognizes signs, understands hints, knower of secrets

Ideography

knowing secrets

enigma, riddle and hint, suggestion, indirect reference or allusion

cryptography

hint, give a hint or sign, make allusions

hint, give a hint or sign, make allusions

enigma, double, mysterious allusion and hint, innuendo

mysterous

enigmatic, innuendo,element of mystery/enigma, ambiguous expression, double entendre, mysterious allusion, symbolism

hints, signs, codes

امریکا demilitarized zone.

sharp (knife)

agile

one who speaks mysteriously, etc., a proposer of enigmas, or riddles, etc., an enigmatist

breathing, to inhale and exhale, to say something

take breath