In each of the following questions, out of the given alternatives,choose the one which best expresses the meaning of the given word.
Meaning: based on or serving as a hypothesis.
Meaning: an act of speaking one's thoughts aloud when by oneself or regardless of any hearers, especially by a character in a play.
Meaning: a comparison between one thing and another, typically for the purpose of explanation or clarification.
Meaning: handle or control (a tool, mechanism, information, etc.) in a skilful manner.
Meaning: a partial refund to someone who has paid too much for tax, rent, or a utility.