Definitions

1. adjective

being the beginning of a series, sequence, or process

“She was the first to arrive at the party.”

2. noun

the beginning of a period of time or a series of events

“The first day of school was exciting.”

3. adverb

before all others in time or order

“They walked first to the store and then to the park.”

4. preposition

used to indicate the starting point of a movement or action

“First, turn left at the traffic light.”

5. conjunction

used to indicate a beginning or an initial condition

“First, I will eat breakfast, then I will go to work.”