1. past tense of regroup: to form into a group again after being scattered or separated
2. past tense of regroup: to reorganize in order to make a new effort or approach

Examples

• The soldiers regrouped after the attack.
• The team regrouped at halftime to discuss strategy.
• After the company’s losses, management regrouped to plan a comeback.
• The protesters regrouped in the park after being dispersed.
• She regrouped her thoughts before continuing the presentation.
• The birds regrouped in formation after the storm passed.