The term 'BIG WASP' is a combination of two words, 'BIG' and 'WASP'. The first word, 'BIG', is an adjective that means large or of considerable size. The second word, 'WASP', is a noun referring to a type of insect belonging to the order Hymenoptera. The crossword solution for this term is 'HORNET', which is also a type of insect belonging to the same order as wasps. Hornets are typically larger than wasps and have more distinct markings on their bodies.