widen

To become wide or wider.

His eyes widened as her negligee fell to the floor.

To make wide or wider.

The widening works include the rebuilding of the skew bridge near Northwood to take four tracks, and to enable the Rickmansworth Road to be widened to 60 ft.; […].

But he still saw his side produce a rousing display which owed much to their lauded prowess from set-pieces, despite Uefa regulations meaning the pitch had to be widened and, in the process, the run-up area for Delap's long throws reduced.

To let out clothes to a larger size.

She widened his trousers for him.

To broaden or extend in scope or range.

The police widened their enquiries.

While the primary focus of the Sexual Orientation Committee had been to lobby for gay rights legislation, the new Task Force hopes to widen its activities. The Task Force ― in addition to lobbying — hopes to function as an "umbrella organization," facilitating communication between the state's many gay groups.

To convert to a data type that can hold a larger number of distinct values.

to widen a short variable to an int variable

A surname from Swedish.