Definition:
“A sentence that makes a statement–any statement, from vitally important information to a minor detail.”
Ellis, Matt. "What Is a Declarative Sentence?" grammarly.com, 2022 Grammarly Inc., 5 Nov. 2021, www.grammarly.com/blog/declarative-sentences/. Accessed 28 Aug. 2022.
Informal:
A sentence that consists of a statement in which something is being declared; containing anything from the main idea to a trivial detail. These sentences are sometimes simple sentences with either a positive or negative connotation.
Example: Real Housewives of New Jersey star, Teresa Giudic, turned herself in to serve a 15-month sentence for bankruptcy fraud. –Daily Beast
[The Daily Beast is making a statement or declaring the news of Teresa Giudice]
Etymology:
From Old French déclaratif (-ive) and Latin’s declarative, from declarat-, meaning ‘made clear’.
First known use in 1799.
"declarative." oxfordlearnersdictionaries.com, 2022 Oxford University Press, www.oxfordlearnersdictionaries.com/us/definition/english/declarative?q=declarative. Accessed 28 Aug. 2022.
"declarative sentence." dictionary.com, 2022 Dictionary.com, LLC, www.dictionary.com/browse/declarative-sentence. Accessed 29 Aug. 2022.
Analysis of Declarative Sentences
Olivia Prince