uncertainty – n. the quality or state of being doubtful

refer – v. to have a direct connection or relationship to something

phrase – n. a group of two or more words that express an idea but do not form a complete sentence

plural – adj. relating to a form of a word that refers to more than one person or thing

drab – adj. not bright or colorful

notice – n. to become aware of something by seeing or hearing it

singular – adj. relating to a form of a word that refers to one person or thing

script – n. the written form of a video, television show, play or something else

tip – n. a piece of advice or useful information

practice – v. to do something again and again in order to become better at it