ace atom bit dab dole dot dram dribble driblet dwarf farthing fleck flyspeck fragment gobbet grain granule groat hair handful iota jot little little bit lota minim minimum minutiae mite modicum molecule mote nutshell ounce particle pebble pinch pittance point ray scruple smitch speck spoonful spot thimbleful tiny bit tittle trifling amount trivia whit