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Knowledge Base

Explore the breadths and depths of Grammarflex’s knowledge base, containing resources and comprehensive guides on pretty much everything you could want to know related to English grammar and writing.

Learn all about the main parts of speech, which (in case you forgot) comprises of verbs, nouns, adjectives, pronouns, adverbs, conjunctions, prepositions and interjections. Beyond the fundamentals of English grammar, you’ll find guide on writing mechanics and style, literary devices amd more. 

What’s the Plural of Locus?

Locus, which comes from the Latin word meaning, “a place” (as in, location), has loci as its plural noun form.

Are Glasses Singular or Plural?

Glasses are a ‘plural-only’ noun, and are only used as a plural noun. Objects that are made up of parts/pieces/pairs are called plural-only.

What’s the Plural of Vortex?

Both vortices and vortexes are correct plurals of vortex, meaning “whirlpool, eddying mass.” The original plural noun form is vortices (for Latin purists).