- Trading - Trading altcoins and collect more BTC (invloves risk of losing)
- Investing - Investing in various platforms like ICOs
- Lending - Lending your BTC to someone and gaining interests over it
- Staking - Invest in PoS coins that give out good profit
- Mining - Start mining by GPU or machines
- Working for BTC - Provide your services such as graphic designing, content writing, bug reporting, videos etc..
- Contests - Take part in contests that pay in BTC (you can find them in the forum)
- Signature campaigns - No need to explain as there are multiple threads in forum on this topic
- Bounty campaigns - Earn bounty tokens and sell them for BTC
- Airdrops - Take part in airdrops and sell them for more BTC.
agree to pawanjain, This post is showing you the list possible ways to earn bitcoin. but my advice to you is give more time reading and learning more about bitcoin here in our forum. This will help and you may use this as a reference in further learning that will help you a lot.