This plugin allows you to add a thesaurus lookup to your sidebar, or anywhere else. Thesaurus service provided by words.bighugelabs.com.
Add the limit option to your function call in this manner:
<?php thesaurus_print_lookupform('limit=10'); ?>
Yes, thanks for asking. There is a limit of 10,000 requests per day, per IP address. If you need more, take a look at this page:
Yes, just one. Thesaurus lookup requires the PHP CURL library, which should be installed by default on your server. If not, talk to your web host about getting it implemented.
Absolutely. This plugin is in use at this website: