To become fully aware of something as a fact; understand clearly. She suddenly realised that she had left her keys at home.
To achieve something desired or anticipated. He finally realised his dream of becoming a professional musician.
To convert an asset into cash or money. The company decided to realise its investments to improve cash flow.
To give actual or physical form to something that was merely imagined, planned, or hoped for; bring into existence. The director managed to realise his creative vision on the big screen.