Definitions of suitable:

• adjective:   suitable for the desired purpose

  Example: "Is this a suitable dress for the office?"

• adjective:   worthy of being chosen especially as a spouse

  Example: "The parents found the girl suitable for their son"

• adjective:   meant or adapted for an occasion or use

  Example: "A tractor suitable (or fit) for heavy duty"

• adjective:   appropriate for a condition or occasion

  Example: "She is not suitable for the position"