With regards to the communication process, which term refers to the conversion of a sender’s ideas and thoughts into a message, usually in the form of words or signs?

Encoding.

Explanation:

'Encoding' is demonstrated as the process in which thoughts, ideas, or messages are converted into a message or communication in the form of signs or words that needs to decoded by the listener/receiver in order to understand and interpret it. It is basically associated with the formulation of messages(in the form of words) that a person wishes to convey to another. The efficacy of encoding is determined by the choice of words and the style in which it is arranged or presented as it is directly related to the receiver's interpretation of the meaning. Therefore, 'encoding' is the answer.

there is 2 main differences, basically which are the users and the market. the other difference is the kind of content

people who use tik tok are mainly people from east asia, kind of like the app douyin. musically, on the other hand, are used by people from america or european countries.

while tik tok videos show things like daily life videos, comedy, or just funny videos, musically are like people mimicking songs with their own actions, 'imitate' singers and video clips.

hope this !