Pronunciation: /fæst/
adjective moving or able to move quickly
A1 The cheetah is very fast.
A2 I need to catch the fast train to get to work on time.
B1 She typed the report up fast so she could leave early.
B2 The internet connection is fast enough to stream movies without buffering.
C1 The athlete ran so fast that he broke the world record.
C2 The car accelerated so fast that it left all other vehicles behind.
adverb quickly or in a short time
A1 She runs fast.
A2 He eats fast food often.
B1 I need to finish this project fast.
B2 The car accelerated fast on the highway.
C1 The company responded fast to the customer's complaint.
C2 The athlete sprinted fast towards the finish line.
formal The new high-speed train is known for its fast travel times.
informal I need to finish this project fast so I can go home early.
slang Let's grab some fast food for dinner tonight.
figurative Time flies fast when you're having fun.
fasted
fasts
faster
fastest
fast
will fast
has/have fasted
is/are fasting
fast
fast
to fast
fasting
fasting