throw in vs come in

throw in and come in both are verbs.

Word	Noun	Adjective	Verb	Adverb
throw in	No	No	Yes	No
come in	No	No	Yes	No

As verbs, throw in and come in are synonyms defined as:

Other synonyms of throw in include inject, interject, interpose, put in.

throw in (verb)	come in (verb)
to insert between other elements	take a place in a competition; often followed by an ordinal
give up in the face of defeat of lacking hope; admit defeat	to insert between other elements
add as an extra or as a gratuity	be received
	to come or go into
	come into fashion; become fashionable