knock over vs tip over

knock over and tip over both are verbs.

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

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

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

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

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