blades is a form of:

Blade



noun
1.
(The cutting part of a knife, tool etc, broad flat object or part, the leaf, or flat part of the leaf, of a plant, a sword, the upper bone in shoulder, scapula) ពន្លក, ទងសរសៃ (សរសៃខ្សែរឺពួរ) / ឡាមកោរពុកមាត់, ផ្លែកាំបិតវះកាត់, ស្លាបច្រវា, ស្លាបចែវ, ស្លាបចក្រ, ស្លាបកង្ហារ, សន្ទះបិទទឹក, blade of a knife ផ្លែកាំបិត, blade of grass ធាង, ស្លឹក
ENGLISH MEANING
noun
1.
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.
2.
The cutting part of an instrument; as, the blade of a knife or a sword.
3.
The broad part of an oar; also, one of the projecting arms of a screw propeller.
4.
The scapula or shoulder blade.
5.
The principal rafters of a roof.
6.
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.
7.
A sharp-witted, dashing, wild, or reckless, fellow; -- a word of somewhat indefinite meaning.
8.
The flat part of the tongue immediately behind the tip, or point.
verb
1.
(TRANSITIVE) To furnish with a blade.
2.
(INTRANSITIVE) To put forth or have a blade.