rapidly

Everyday

1. Very quickly; at a great speed. tree →
2. Happening in a short time (the town grew rapidly). tree →

In the lessons

Used in science (water boils rapidly, a population grows rapidly), geography (rapidly flowing rivers), safety (fire spreads rapidly) and stories (her heart beat rapidly). Phrases: «grow rapidly», «rapidly increasing», «move rapidly».

Examples

• The fire spread rapidly through the dry grass. tree →
• The puppy is growing rapidly. tree →
• Her heart beat rapidly before the race. tree →
• The water level rose rapidly after the storm. tree →
• Prices rose rapidly last month. tree →
• He rapidly ate his lunch and ran out to play. tree →
• Bacteria can multiply rapidly in warm food. tree →
• “Let it be so,” she replied, and she dressed rapidly. tree →

Note

Same as «quickly» but more formal. Adjective «rapid»; noun «rapids» (fast, rough part of a river). In maths and science, «increases rapidly» means a large change in a short time — a steep line on a graph.