Which of the following is NOT one of the types of changes in word-meaning?

Comment on the following groups of words in terms of types of antonyms: contradictory terms, contrary terms, relative terms.“true — false’’，“big — small”，“husband - wife”

Explain the difference between back-formation and suffixation.

What does the underlined word mean in the following sentence and what contextual clue is used?“He was in a mood of complete (euphoria), his happiness being the result of an announcement that he had won the sweep-stakes.”

Identify the kind and the origin (Latin, Greek, French, Scandinavian or Italian) of the following groups of words.

1)thrive, they, egg, ill, die

2)status, minimum, arena, species, alibi

3)synonym, polysemy, grammar, etymology, syntax

4)symphony, piano, trio, tenor, model

5)dress, clock, pork, mutton, fry

Explain what is polysemy from the synchronic point of view.

What is acronymy?

extension

metonymy

motivation

stem