bigger
comparative form of big; more large in size
He's bigger than his brother.
biggest
superlative form of big; the most large
That is the biggest cake I've ever seen.
big-hearted
generous and kind
She's a big-hearted person who volunteers every week.
bigwig
an important or influential person
The bigwigs met to discuss the merger.
bigmouth
a person who talks too much or reveals secrets
Don't tell him—he's a bigmouth.
big-time
to a great degree; very
He failed big-time.
big-name
well-known; a famous person or brand
They signed a big-name actor for the film.
big-box
relating to large warehouse-style retail stores
The area is full of big-box retailers.
big data
extremely large datasets analyzed to reveal patterns
Many companies rely on big data to drive decisions.
big-boned
having a sturdy or large skeletal frame
She's not overweight—she's big-boned.