You would not ordinarily capitalize any letter of hors d'oeuvres. But for a menu heading (which is not required to be grammatical), either the capital H alone, or capital H and O, could be proper.
No caps needed. It's a common noun. Of course, you'd capitalize the H if it was the first word in a sentence.
In English, hors d'oeuvres is the plural and the singular is hors d'oeuvre.un hors-d'oeuvre, pl. des "hors-d'oeuvre". The word is invariable in French; only the determiner is changed to plural.In multiple part words, verbs, adverbs and prepositions do not change. Nouns can take the plural mark, or not depending of the sense of the word. EX: "une pomme de terre, des pommes de terre" because one or many potatoes always come from the ground.a number of examples in the short linked article (in French)
one hors-d'oeuvre per guest is enough.
The correct English spelling of the appetizers is hors d'oeuvres.(from the French "apart from the work")
The French (singular and plural) is hors d'œuvre; in English, the œ ligature is usually replaced by the digraph "oe" with the plural often written as "hors d'oeuvres".
differ proper names from things named after proper names
When using a proper noun, or begining a sentence
Holocaust is proper and therefore requires capitalization.
Punctuation and capitalization are important for clarity, communication, and comprehension. They help organize thoughts, indicate pauses, and signal the beginning of sentences or proper nouns. Proper use of punctuation and capitalization enhances the overall readability and understanding of written language.
Proper capitalization is an important part of English grammar. Many websites offer information about the rules of grammar, such as Webgrammar, GrammarBook, and Grammarly. Any decent grammar textbook should also have information about capitalization.
To improve your PowerPoint presentation, use proper capitalization techniques by capitalizing the first letter of each word in the title and subtitles, capitalizing proper nouns, and avoiding excessive capitalization in body text. This will make your presentation more professional and easier to read.
you use capitalization at the beginning of sentences, the letter I, proper nouns, titles, and names.