In the sentence 'It's important to exercise', the introductory subject 'it' functions as a placeholder rather than a referent.

Because the two names belonged to different ranks, the compiler treated the older name as a subjective synonym of the newer one based partly on personal judgment.

Scholars often list subjective synonyms when analyzing how different cultures describe feelings.

Subject clauses can be difficult to identify in long sentences.

Librarians agreed to change the subject heading to better reflect modern terminology.

My professor assigns quirky subjects to challenge our creativity every semester.

In some Icelandic constructions, the quirky subject is required by the verb even though it appears in an oblique case.

The student learned that the subject of labor encompasses any material or resource to which human labor is applied.

The librarian updated the subject headings in the catalogue to improve search accuracy.

When the conversation got heated, he tried to change the subject to something light.