biggest
adj.adj. the largest in size, amount, or importance. You use this when comparing three or more things to find the one that is the most extreme.
adj. the superlative form of 'big', indicating the maximum degree of physical size, volume, or significance within a group.
This is the biggest apple in the basket.
The biggest challenge for the new team was learning how to communicate effectively across different time zones.
While several factors contributed to the project's failure, the biggest obstacle remained the lack of consistent funding from the primary stakeholders during the initial development phase.
Superlative adjective — typically preceded by the definite article 'the'.
the most biggestthe biggestSuperlative adjectives ending in '-est' do not take the word 'most'.