người biểu tình 
demonstrator [ người ] : man, person, people, individual, body
[ biểu ] : (1) table, chart, meter, scale, index; (2) to express, manifest, display, show, demonstrate; (3) to say, tell, order; (4) second degree near relatives of different surnames; (5) memorial to the king
[ tình ] : feeling, sentiment
Most Common Compounds Set 1:
Most Common Compounds Set 2 :