seep in

seep in(to something)

To flow or leak in(to something) gradually but steadily. I realized there was a fire downstairs when I noticed smoke seeping into our bedroom. I made sure to make the container airtight so no moisture seeps in.
See also: seep
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

seep in (to something)

[for a fluid] to trickle or leak out of something. Water is seeping into the basement. Water is seeping in very slowly.
See also: seep
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
The roof of the room was not plastered that caused rainwater to seep in.
The only other seep community that has been quantitatively described is Forested Hillside Seep in Maine.
US oil company Chevron discovered an oil seep in an offshore Brazilian oil field run by Petrobras near the site of a November leak that led to civil and criminal charges and sparked concerns about some of the world's most promising deep sea reserves.
"Chevron has identified a small new seep in the field and subsidence in the area."
HOUSTON, July 20, 2010 (TAP) - The federal government Monday allowed BP to keep the cap shut tight on its damaged Gulf of Mexico oil well for another day despite a seep in the sea floor after the company promised to watch closely for signs of new leaks underground.