转达 (zhuǎn dá): to pass on; to convey; to communicate

The manager is in a meeting; he asked me to tell you that the contract will be discussed tomorrow morning.

My sister brought you some fruit and also asked me to pass on her thanks for helping her fix her computer last time.

Please pass on to Teacher Wang that I'll go to his office tomorrow afternoon to ask for his guidance on a paper.

The receptionist politely relayed the guest's complaint, saying the air conditioner in the room was broken and asking for someone to repair it soon.

When you see Xiao Li, please pass on a message for me: happy birthday and get well soon.