Answer:Sure, whats your question.
Synonyms may help people to figure out meanings by known words. If a word's meaning is unknown, atleast one of the synonyms must be a known word. So, the meaning of the unknown word can be explained by the meaning of the known synonym, as a synonym is an alternative word with the same meaning.
16:9 is the answer.It is the standard size for high definition widescreen
They aren’t. Simplest answer.