• z-ray eye,
• c-ray eye,
• d-ray eye,
• s-ray eye,
• x0ray eye,
• xpray eye,
• x-eay eye,
• x-day eye,
• x-fay eye,
• x-tay eye,
• x-5ay eye,
• x-4ay eye,
• x-rzy eye,
• x-rsy eye,
• x-rwy eye,
• x-rqy eye,
• x-rat eye,
• x-rag eye,
• x-rah eye,
• x-rau eye

The adjective form of the phrase "x-ray eye" could be "x-ray-eyed".

The plural form of "x-ray eye" is "x-ray eyes"

The singular form of the word "x-ray eye" is "x-ray eye". The word remains the same in both singular and plural forms.