“Soit” is a French word with a few meanings depending on context:

“Soit.” = Alright / Fine / So be it
Used to accept something, sometimes reluctantly.
Example: Soit, faisons comme ça. → “Fine, let’s do it that way.”
In math or formal writing:
“Soit…” = Let…
Example: Soit x un nombre réel. → “Let x be a real number.”
In explanations:
It can also mean That is to say or Namely in structured lists.

If you meant something else by “soit,” tell me the context and I’ll explain it more precisely.