tip over vs knock over

tip over and knock over both are verbs.

Word	Noun	Adjective	Verb	Adverb
tip over	No	No	Yes	No
knock over	No	No	Yes	No

As verbs, tip over and knock over are synonyms defined as:

tip over and knock over: cause to overturn from an upright or normal position

Other synonyms of tip over include bowl over, overturn, tump over, turn over, upset.

tip over (verb)	knock over (verb)
turn from an upright or normal position	cause to overturn from an upright or normal position
cause to overturn from an upright or normal position