A similarly shaped tool; a machete.
A short sword with a curved blade, and a convex edge; once used by sailors when boarding an enemy ship.
To cut back (vegetation) with a cutlass.
A knife with blades or tools that the user can fold or retract into its handle, and of a size small enough for carrying safely and handily in a pocket, especially when suited to heavier duty uses or ad hoc applications outdoors or in workshops.