| • | Properly, the leaf, or flat part of the leaf, of any plant, especially of gramineous plants. The term is sometimes applied to the spire of grasses. |
| • | The cutting part of an instrument; as, the blade of a knife or a sword. |
| • | The broad part of an oar; also, one of the projecting arms of a screw propeller. |
| • | The scapula or shoulder blade. |
| • | The principal rafters of a roof. |
| • | The four large shell plates on the sides, and the five large ones of the middle, of the carapace of the sea turtle, which yield the best tortoise shell. |
| • | A sharp-witted, dashing, wild, or reckless, fellow; -- a word of somewhat indefinite meaning. |
| • | To furnish with a blade. |
| • | To put forth or have a blade. |
