9 letters · 10 points in Scrabble
noun someone who waits on or tends to or attends to the needs of another
noun a person who is present and participates in a meeting
noun an event or situation that happens at the same time as or in connection with another
originFrom Middle English attendant, attendaunt, from Old French attendant. By surface analysis, attend + -ant.
Etymology from Wiktionary, CC BY-SA 3.0