Mustard is a yellow or brown paste usually eaten with meat. It tastes hot and spicy.

Mustard is a small plant with yellow flowers. The seeds can be used to make mustard.

Mustard is used to describe things that are brownish yellow in colour.

If someone does not cut the mustard, their work or their performance is not as good as it should be or as good as it is expected to be.

If you are as keen as mustard or mustard keen, you are very eager or enthusiastic.