webcam vs digital camera

webcam and digital camera both are nouns.

Word	Noun	Adjective	Verb	Adverb
webcam	Yes	No	No	No
digital camera	Yes	No	No	No

As nouns, digital camera is a hypernym of webcam; that is, digital camera is a word with a broader meaning than webcam:

webcam: a digital camera designed to take digital photographs and transmit them over the internet
digital camera: a camera that encodes an image digitally and store it for later reproduction

webcam (noun)	digital camera (noun)
a digital camera designed to take digital photographs and transmit them over the internet	a camera that encodes an image digitally and store it for later reproduction