eye meaning
EN
[aɪ] [-aɪ] 
US WEye
- Eyes are the organs of vision. They detect light and convert it into electro-chemical impulses in neurons.
- The simplest "eyes", such as those in microorganisms, do nothing but detect whether the surroundings are light or dark, which is sufficient for the entrainment of circadian rhythms.
EN Eye 
- NounPLeyesPLeyen
- An organ through which animals see.
- She was like a Beardsley Salome, he had said. And indeed she had the narrow eyes and the high cheekbone of that creature, and as nearly the sinuosity as is compatible with human symmetry. His wooing had been brief but incisive.
- The visual sense.
- The car was quite pleasing to the eye, but impractical.
- Attention, notice.
- That dress caught her eye.
- The ability to notice what others might miss.
- He has an eye for talent.
- A meaningful stare or look.
- She was giving him the eye at the bar.   When the car cut her off, she gave him the eye.
- A private eye: a privately hired detective or investigator.
- A hole at the blunt end of a needle through which thread is passed.
- A fitting consisting of a loop of metal or other material, suitable for receiving a hook or the passage of a cord or line.
- The relatively clear and calm center of a hurricane or other such storm.
- A mark on an animal, such as a peacock or butterfly, resembling a human eye.
- The dark spot on a black-eyed pea.
- A reproductive bud in a potato.
- INF The dark brown center of a black-eyed Susan flower.
- A loop forming part of anything, or a hole through anything, to receive a rope, hook, pin, shaft, etc. — e.g. at the end of a tie bar in a bridge truss; through a crank; at the end of a rope; or through a millstone.
- That which resembles the eye in relative importance or beauty.
- Tinge; shade of colour.
- One of the holes in certain kinds of cheese.
- (architecture) The circle in the centre of a volute.
- A brood.
- an eye of pheasants
- An organ through which animals see.
- VerbSGeyesPReyeingPReyingPT, PPeyed
- To observe carefully.
- After eyeing the document for an hour she decided not to sign it.
- They went out and eyed the new car one last time before deciding.
- To view something narrowly, as a document or a phrase in a document.
- To look at someone or something as if with the intent to do something with that person or thing.
- OBS To appear; to look.
- To observe carefully.
- More Examples
- Used in the Middle of Sentence
- I can't keep my eyes off the dancer; she arouses me greatly.
- And directly below is our Mesozoic jungle river -- where, if you are lucky, you just may catch a glimpse of a very rare carnivore. Keep your eyes peeled, everyone!
- My sister's eyes were full of stardust, and she'd spend hours lazily planning her future life when she would make her big break in the movies.
- Used in the Beginning of Sentence
- Eyes undergoing vitrectomy are normally exposed to light by endoillumination, illumination by the operating microscope, and chandelier lighting.
- Eyes were examined ophthalmoscopically by an experienced retinologist and selected for study inclusion.
- Used in the Ending of Sentence
- Overaction of the inferior oblique muscle (IOOM) is manifest by overelevation of the adducted eye.
- One Hollywood Flood-Lite was used, subdued to 20 amperes and screened by lowering the Lite back of a small headground, until detail in the composition was almost lost to the eye.
- ...and called him his father; this overpowered the brave man's heart, and obliged him to turn around, to prevent the tears that stood ready to gush from his eyes.
- Used in the Middle of Sentence
Definition of eye in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Verbs
- Nouns
- en eyes
- en eyebrows
- en eyed
- en eyesight
- en eye-witness
Source: Wiktionary
Grammatically, this word "eye" is a noun, more specifically, a countable noun. It's also a verb.