put across, intercommunicate, transmit, commune, convey, pass on, pass, speak, interact, communication, more...

isolate, conceal, withhold, silence, obscure

speech, sign language, body language, emoji, text, email, instant message, telegram, letter, telephone, more...

keep in touch,   talk with,   share information,   stay in touch,   express one's ideas,   stay connected,   exchange ideas,   get a point across,   relay information,   to convey