Ice over

Pro Tip 1/3

Used when discussing natural water bodies freezing due to cold weather, often in winter.

The lake iced over early this year, signaling a long winter.

Pro Tip 2/3

The process of icing over takes time and does not happen immediately.

As temperatures dropped, we watched the stream slowly ice over.

Pro Tip 3/3

Often used to indicate seasonal changes, especially the onset of winter.

Each year, the villagers wait for the pond to ice over to begin celebrations.