と

from “A Dictionary of Basic Japanese Grammar”

1. a particle which lists things exhaustively
   1. “and”
   2. use it when you’re listing everything. if you’re not listing everything, use や
2. a particle marking the noun phrase which maintains a reciprocal relationship with the subject of a clause
   1. with; as; from
3. a particle which marks a quotation, sound, or the manner in which someone/something does something
   1. that; with the sound of; in the manner of

it can also be used as a conjunction: 4. a subordinate conjunction which marks a condition that brings about an uncontrollable event or state 1. if; when but we’re focusing on the particle version right now.

for other connective particles, see し, て, and や