to be wide or spacious, and to make wide: to enlarge, broaden, or make room.
At its root this word is about width. Something is wide, or someone makes it wider: a plaza, a border, a tent, a bald patch, a mouth stretched open. Ancient Israel pictured trouble as being penned into a tight, narrow place and rescue as being brought out into open space, so widening became one of the Bible's main images for relief and blessing.
The striking thing is that the same word carries opposite moral weight depending on who does the widening. When God is the one who enlarges, it is always gift: he widens Israel's land, makes room for a person in distress, opens the heart to understand and obey, and swells it with joy. When people or death widen things for themselves, the same word turns dark: a mouth opened wide in mockery, a throat or appetite that can never be filled, a bed spread wide in unfaithfulness, a border seized by violence. The prophet Amos sharpens this by putting the very verb of God's covenant blessing into the mouth of a neighboring nation's cruelty, and the book of Isaiah sets a restored Jerusalem told to widen her tent only a few chapters away from an unfaithful Jerusalem widening her bed.
So the various English words translators reach for (enlarge, broaden, make room, open wide) all circle a single idea: making space. Whether that space is a blessing or a sin is decided by who is acting and in what setting, not by the word itself.