Right above the little paper-clip.
No. The light bulb is two words, not a combination of light and bulb.
Yes, the word 'light bulb' is a noun, a compound noun, a word for a thing.
"light bulb" is a noun.
incandescent
The correct spelling is light bulb.Lite is not a word, but it is used as slang for "light version" in mobile apps.
Two
incandescent lamp
The rhyming word for a 100-watt bulb is "dull."
Incandescent lamp
torch
Bright Light