Bike/baɪk/ Definition 1 of 3Pro Tip 1/3Pedal Power Bike refers to human-powered travel, emphasizing activity and health. I get my exercise by biking to the park. Pro Tip 2/3Eco-Friendly Using 'bike' highlights an environmentally friendly choice compared to cars. Biking to work reduces carbon footprint. Pro Tip 3/3Casual Activity Biking is often casual, suitable for informal contexts and recreation. Let's go for a bike ride this weekend.