Appetizer
An hors d’oeuvre (; French: hors d’œuvre [ɔʁ dœvʁ] ( listen)), appetizer or starter is a small dish served before a meal. Some hors d’oeuvres are served cold, others hot. Hors d’oeuvres may be served at the dinner table as a part of the meal, or they may be served before seating. Formerly, hors d’oeuvres were also served between courses.Typically smaller than a main dish, it is often designed to be eaten by hand (with minimal use of cutlery).
Wikipedia
Appetizer (noun)
A small, light, and usually savory first course in a meal
Appetiser (noun)
alternative spelling of appetizer
Wiktionary