videotape vs tape

videotape and tape both are nouns.

Word	Noun	Adjective	Verb	Adverb
videotape	Yes	No	Yes	No
tape	Yes	No	Yes	No

As nouns, tape is a hypernym of videotape; that is, tape is a word with a broader meaning than videotape:

videotape: a relatively wide magnetic tape for use in recording visual images and associated sound
tape: memory device consisting of a long thin plastic strip coated with iron oxide; used to record audio or video signals or to store computer information

Other hypernyms of videotape include mag tape, magnetic tape.

As nouns, tape is a hypernym of videotape; that is, tape is a word with a broader meaning than videotape:

Other hypernyms of videotape include tape recording, taping, video, video recording.

As verbs, videotape and tape are synonyms defined as:

videotape (noun)	tape (noun)
a relatively wide magnetic tape for use in recording visual images and associated sound	a long thin piece of cloth or paper as used for binding or fastening
a video recording made on magnetic tape	a recording made on magnetic tape
	measuring instrument consisting of a narrow strip (cloth or metal) marked in inches or centimeters and used for measuring lengths
	memory device consisting of a long thin plastic strip coated with iron oxide; used to record audio or video signals or to store computer information
	the finishing line for a foot race