main, chief, key, prime, central, principal, foremost, first, predominant, paramount;
basic, initial, elementary, introductory, first, fundamental, primary, prior
A synonym for changable is adaptable.
A synonym for common noun is word.
A synonym for debris is garbage. An antonym for debris is cleanliness.
A synonym for the word "sensor" is "detector".
Primary
Correct
cried
hot
The primary synonym would be "stubborn".
initial, primary, early, original
Synonyms is the correct spelling.
the correct synonym for the word maintaining is Preserving.
annoying
Clearly is the correct answer.
silly
uncertain