Choose the word which is different from the rest.

The answer is C. Simmer.

Blaze, glint, shimmer, and glimmer all refer to a bright light or reflection. Simmer, on the other hand, refers to a low, steady boiling.

Blaze: a bright, often destructive fire.
Glint: a brief flash of light, especially one reflected from a surface.
Shimmer: a soft, flickering light, especially one seen on a surface of water or on a hot day.
Glimmer: a faint or flickering light.