1. becomes steeper or makes something steeper
Usage: third person singular present tense of ‘steepen’

Examples

• The trail steepens as you approach the summit.
• The road steepens dramatically after the bridge.
• The slope steepens near the cliff edge.
• As we climbed higher, the path steepens considerably.
• The hill steepens just before the final turn.
• The grade steepens from 5% to 15% in this section.