Definition, synonyms and related words
superlative form of big: most big
"The biggest whale ever recorded was spotted swimming near the coast last week."
In plain English: Biggest means the largest in size, amount, or importance compared to everything else.
"They built the biggest house in the neighborhood."
Usage: Use "biggest" to describe the largest item or person within a specific group when comparing three or more things. Do not use it for simple comparisons between only two items, where "bigger" is correct.
Derived from Old English biggost, this superlative form originates from the adjective big (meaning large or great) and originally denoted the state of being larger than all others.