Free online dictionary and thesaurus

A dictionary is a book that gives the definition of a word, while a
thesaurus gives a word's synonyms, antonyms and related words.
To get a word's synonym, definition, etc without spending a kobo, visit
www.freebasics.com with your Airtel SIM. Search for Dictionary and
Thesaurus, and add them to your free services. Bookmark them on your
browser for easy future reference. Click those links and type the word
you want into the Search space.

Free Basics' Thesaurus helps you find the right synonyms for each word
in a Crossword Puzzle, which is a good way to broaden your vocabulary.

If you start finding words this way months or years before your SSCE,
you will be able to "find another word or phrase that means the same
as each of the following words and can replace it as it is used in the
passage " without any stress at all.