- atom, molecule, particle, corpuscle, mote, speck - (nontechnical usage) a tiny piece of anything
--1 is a kind of material, stuff
--1 has particulars: grain; chylomicron; flyspeck - particle - a body having finite mass and internal structure but negligible dimensions
--2 is a kind of body
--2 has particulars:- particle - a function word that can be used in English to form phrasal verbs
--3 is a kind of function word, closed-class word
- particle - a function word that can be used in English to form phrasal verbs