The word "lapse" can be defined as a temporary failure, a slip in judgment, or a break in continuity. For the word "lapse," some synonyms include blunder, slip-up, error, gaffe, oversight, neglect, mistake, gap, interval, hiatus, pause, interruption, and intermission. Depending on the context, each of these words can be used to describe a specific instance of "lapse." For example, "blunder" and "mistake" may be used to describe a lapse in judgment, while "intermission" and "hiatus" may be used to describe a break in continuity. Knowing these synonyms can help to expand vocabulary and provide more options for expressing yourself in writing or speech.