Curfew refers to a law or order that requires people to be indoors after a certain time at night, as well as to the period of time when such an order or law is in effect. Chiefly in the United States, curfew is also used to refer to the time set by a parent or caregiver at which a child has to be back home after going out.

// No one is allowed on the streets during the curfew.

// Lana has a 10 o’clock curfew, so we need to bring her home right after the movie.

Something described as multifarious has great diversity or variety, or is made up of many and various kinds of things. Multifarious is a formal word and a synonym of diverse.

// He participated in multifarious activities throughout college.

Quark is a word used in physics to refer to any one of several types of very small particles that make up matter.

// Quarks, which combine together to form protons and neutrons, come in six types, or flavors: up, down, charm, strange, top, and bottom.

Imperturbable describes someone or something marked by extreme calm; such a person or thing is very hard to disturb or upset.

// The imperturbable captain did not panic when the boat sailed into the path of a violent storm.

// Nothing disrupted the contestant's imperturbable focus.

An emollient is something, such as a lotion, that softens or soothes.

// She keeps a number of oils in the bathroom—argan, almond, and coconut—to use as emollients.

Draconian describes something (often a law, policy, restriction, etc.) that is very severe or cruel.

// The editorial criticizes the draconian measures being taken by city hall to rein in spending.

Transpire is a formal verb that means “to happen,” or in other words “to take place or occur.” It can also mean “to come to light” or “to become known,” as in “It transpired that they had met previously.” In botany, to transpire is to give off or exude watery vapor especially from the surfaces of leaves.

// The monument will ensure that posterity will not soon forget the historic events that transpired on that day.