INSEPARABLE PHRASAL VERB. An inseparable phrasal verb CANNOT be separated by an object. It CAN be followed by an object pronoun (if the verb takes an object.). The airplane took off. (departed). His heart gave away. (stopped working). School lets out in June.
Definition of enlightenment for English Language Learners. : 1  the state of having knowledge or understanding : the act of giving someone knowledge or understanding. 2  the Enlightenment : a movement of the 18th century that stressed the belief that science and logic give people more knowledge and understanding than tradition and religion.
Definition of observation for English Language Learners. : 1  a statement about something you have noticed : a comment or remark. : 2  the act of careful watching and listening : the activity of paying close attention to someone or something in order to get information. : 3  something you notice by watching and listening.