Sentence Case Applies sentence case to selected text.
Lower Case Makes selected text all lower case.
Title Case Applies title case to selected text. (Capitalizes the first letter of the first and last word, plus all nouns, pronouns, verbs, adverbs and adjectives, but not conjunctions, articles or short prepositions.) Some words, such as the word 'yet', should be capitalized or not, depending on the context in which they are used, so it may be worth checking the capitalization Merops has applied.
Initialism Makes selected text all upper case and adds/removes points in accordance with your Standard Set.
Small Caps Applies Small Caps formatting to selected text. Small Caps is a format that makes lowercase text appear as capital letters in a reduced font size.
All Caps Applies All Caps formatting to selected text. All Caps is a format that makes all letters appear upper case.