4 lines that have 1 missing word in common – what is it? Over 2000 fun word puzzles. Sharpen your skills, Anywhere, Anytime! 4 Lines 1 Word is a free trivia word game. Fun game for word nerds. One word is all you need! Endless fun with new puzzles. Can you guess the words and unlock the levels? Over 2000 word puzzles from easy to tricky are waiting for you!