New Group Tells British Government to Speed Up Break with Europe

invoke – v. to make use of a law or a right

tightrope – n. a tightly stretched rope or wire high above the ground that a performer walks on, especially in a circus. The word is often used figuratively to describe a dangerous or uncertain situation in which you have to be very careful not to make mistakes

revolt –v. to act in a way that shows that you do not accept the control or influence of someone or something

boom– n. a rapid increase in growth or economic success

migrant – n. a person who goes from place to place, usually for economic reasons

access – n. a way or getting near or close to something; permission or the right to enter

challenge – n. a refusal to accept something as true, correct, or legal