1. a wave with a white foamy crest, especially on the ocean
Usage: nautical

Examples

• The strong wind created whitecaps across the entire bay.
• Sailors could see whitecaps forming as the storm approached.
• The ocean was rough with whitecaps breaking everywhere.
• Small boats struggled against the waves topped with whitecaps.
• From the shore, we watched the whitecaps roll toward the beach.
• The whitecaps made it difficult to spot the dolphins.
• Fishing was postponed due to the heavy whitecaps on the lake.