topicalization vs linguistics

topicalization and linguistics both are nouns.

Word	Noun	Adjective	Verb	Adverb
topicalization	Yes	No	No	No
linguistics	Yes	No	No	No

topicalization (noun)	linguistics (noun)
(linguistics) emphasis placed on the topic or focus of a sentence by preposing it to the beginning of the sentence; placing the topic at the beginning of the sentence is typical for English	the scientific study of language
	the humanistic study of language and literature