"Jack-a-dandy" is not a word commonly used today, but it still has its place in English language. Synonyms for "Jack-a-dandy" include "dandy," "fop," "gallant," "beau," "swell," and "fashion plate." These words all describe someone who is highly concerned with their appearance and attires themselves fashionably. While these terms may have been used more frequently in the past, with the advent of casual clothing and a more relaxed approach to attire, they are still useful in describing a certain type of person who values their appearance above all else. It is interesting to note the changing trends in language use, as words that were once popular have fallen out of favor over time.