The dark clouds loomed over the city, threatening rain.
loom up
Frequency:
50
%
The mountain loomed up in front of them, blocking their path.
loom ominously
Frequency:
40
%
The figure loomed ominously in the shadows.
Idiomatic Expressions for loom
Phrase: looming deadline
Meaning: an approaching or impending deadline
Usage: With the looming deadline, we had to work overtime to finish the project on time.