He has a collection of scale models.

She is a world-famous supermodel.

This book is written with a beginner reader model in mind.

My younger sister will participate in a baton twirling competition.

We are advancing the project using the waterfall model.

The waterfall model is one method of software development.

We use a numerical surface model to understand the topography of this area.

The hidden Markov model is a statistical method that is widely used in natural language processing and speech recognition.

He was born as an illegitimate child and experienced many difficulties.

My grandfather used to till his privately-owned rice field.