Lord's day Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. first day of the week; observed as a day of rest and worship by most Christians; Sunday Example Sentence We always go to church on the Lord's day. Synonyms sun.; sunday; part of the weekend Antonyms Friday; workday Hear It! Say It! Write It! Lord's day Switch to cursive Start Share with your friends: