I didn't realise how much I missed you until you were gone.

I realised that I had forgotten my keys at home.

She realises that she forgot her keys at home.

The realiser of the project was praised for their innovative approach.

The realisers are responsible for implementing the system.

The realisation of his dream brought him great joy.

The realisations of their hard work were evident in their success.

She is realising her dream of becoming a doctor.

The project is not realisable within the given timeframe.

Realisability is an important concept in philosophy.