tagger vs sense tagger

tagger and sense tagger both are nouns.

Word	Noun	Adjective	Verb	Adverb
tagger	Yes	No	No	No
sense tagger	Yes	No	No	No

As nouns, sense tagger is a hyponym of tagger; that is, sense tagger is a word with a more specific, narrower meaning than tagger:

tagger: a computer program that attaches labels to the grammatical constituents of textual matter
sense tagger: a tagging program whose labels indicate the meanings of words or expressions

Other hyponyms of tagger include part-of-speech tagger, pos tagger.

tagger (noun)	sense tagger (noun)
a computer program that attaches labels to the grammatical constituents of textual matter	a tagging program whose labels indicate the meanings of words or expressions
someone who appends or joins one thing to another
someone who assigns labels to the grammatical constituents of textual matter