Definitions of foremost:

• adjective:   preceding all others in spatial position

  Example: "The foremost compartment of the ship"

• adjective:   situated closest to the bow

  Example: "The foremost compartment of the ship"

• adjective:   ranking above all others

  Example: "The foremost figure among marine artists"

• adverb:   prominently forward

  Example: "He put his best foot foremost"

• adverb:   before anything else