What are some synonyms for "appears rarely" and "often referred" ? I'm writing an essay and my teacher doesn't want us to use the same phrases over and over again: repetitive as we write our paragraphs and I'm not really good at thinking of synonyms so please help me.

Answer 1

Here's a good website where you can look up synonyms of words:
http://www.thesaurus.com/

For example, when you look up 'appear,' you find all these: http://www.thesaurus.com/browse/appear?s=t
The words in the darker orange are closest to the original, and the ones in yellow are close but not exact.

Remember to look up each word without any endings. (-s, -ed, -ing, etc.)