ADJ
faint, tiny
A tiny glimmer of light appeared in the darkness as she opened the door.
PREP
~ of
noun
A faint light; a dim glow.
The glimmer of the fireflies was pleasant to watch.
A flash of light.
A faint or remote possibility (as it were a flash of light).
a glimmer of hope
Mica.
The opposite to a trigger; micro-moments of regulation that foster feelings of well-being
verb
To shine with a faint, unsteady light.
the glimmering dawn a glimmering lamp
The fireflies glimmered in the dark.
noun — a slight suggestion or vague understanding
noun — a flash of light (especially reflected light)
verb — shine brightly, like a star or a light
The west yet glimmers with some streaks of day.
There was still a glimmer of hope left.
i Register
In some senses, glimmer is marked as dated. Watch for register when choosing this word.