flight duty period

flight Noun

— Flight is the act of flying: moving through the air using wings. Birds have had flight for millions of years. The flight of the bird was beautiful. — A flight is one trip on an airplane. The flight to Boston leaves soon. This flight is going to New York. — Flight is the act of running away and hiding. The flight of the man just after the crime made the police think he was guilty.

duty Noun

— A duty is something that you should do. Parents have the duty to educate their children. — A tax placed on imports or exports; a tariff, customs duty, excise duty. Import duty and taxes are due when importing goods into the United States.

period Noun

— A period is a length of time. There was a short period when my computer stopped working. During the first period, Germany scored two goals. The dinosaurs lived from late in the Triassic period (about 225 million years ago) until the end of the Cretaceous (about 65 million years ago). — A period is the dot that marks the end of most sentences in English. This -> . is a period. Should I use an exclamation mark or a period at the end of this sentence? — A woman's period is the time each month when she passes blood. I have missed two periods now. I think I must be pregnant.

period Interjection

— And nothing else; and nothing less; used for emphasis. When I say "eat your dinner," it means "eat your dinner", period!