rapid
♦♦ rap|id /r'æpɪd/
1 [ADJ] usu ADJ n
A rapid change is one that happens very quickly.
...the country's rapid economic growth in the 1980's...
...the rapid decline in the birth rate in Western Europe.
● rapidly [ADV] usu ADV with v, also ADV adj
...countries with rapidly growing populations...
= fast
● rapidity [N-UNCOUNT]
...the rapidity with which the weather can change.
= speed
2 [ADJ] usu ADJ n
A rapid movement is one that is very fast.
He walked at a rapid pace along Charles Street.
...whether the Tunnel will provide more rapid car transport than ferries...
● rapidly [ADV] ADV with v
He was moving rapidly around the room...
= quickly
● rapidity [N-UNCOUNT]
The water rushed through the holes with great rapidity.
= speedrap|id trans|it
[ADJ] ADJ n
A rapid transit system is a transport system in a city which allows people to travel quickly, using trains that run underground or above the streets.
...a rapid transit link with the City and London's underground system...
1 [ADJ] usu ADJ n
A rapid change is one that happens very quickly.
...the country's rapid economic growth in the 1980's...
...the rapid decline in the birth rate in Western Europe.
● rapidly [ADV] usu ADV with v, also ADV adj
...countries with rapidly growing populations...
= fast
● rapidity [N-UNCOUNT]
...the rapidity with which the weather can change.
= speed
2 [ADJ] usu ADJ n
A rapid movement is one that is very fast.
He walked at a rapid pace along Charles Street.
...whether the Tunnel will provide more rapid car transport than ferries...
● rapidly [ADV] ADV with v
He was moving rapidly around the room...
= quickly
● rapidity [N-UNCOUNT]
The water rushed through the holes with great rapidity.
= speedrap|id trans|it
[ADJ] ADJ n
A rapid transit system is a transport system in a city which allows people to travel quickly, using trains that run underground or above the streets.
...a rapid transit link with the City and London's underground system...