These words are all <u>opposite one another</u>. Antonyms are the words that oppose each other and <u>have completely contrasting meanings to one another.</u><u>Therefore, these words are antonyms. </u>
<em>Dissolve </em>means for something to break up, and usually to become liquid. <em>Solidify </em>is the word that marks the process of something getting into the solid-state or hardening. These words therefore <u>show the two completely opposing processes. </u>
<em>Noise </em>is the loud or unpleasant sound, an unwanted one. <em>Silence </em>is the complete absence of any sound. Again, we see that<u> these words describe the two contrasting states of sound.</u>
