A thesaurus is most helpful for students who must find the correct pronunciation for a difficult new word.
need to find multiple definitions for one word.
would like to keep their writing from becoming repetitive.
are looking for multiple forms of one word.

Statistics show that internet usage in the united states has grown from just 41% of households in 2000 to 77% of households in 2010. which of the following best describes how online shopping has added to cultural diffusion in the united states? it encourages people to purchase more than they normally would. it makes news and information about products available in an easy-to-consume format. it has allowed large corporations to expand into new states, creating more jobs. it makes goods more accessible to people who might not normally be able to get them.