1. to penetrate or pass through each other; to permeate mutually
2. to exist or occur together in a blended or interwoven way
Usage: often used in abstract or philosophical contexts

Examples

• The two cultures interpenetrate in the city's diverse neighborhoods.
• Light and shadow interpenetrate throughout the painting.
• Their ideas interpenetrate so completely that it's hard to tell them apart.
• Water and oil do not interpenetrate easily.
• The roots of the trees interpenetrate the soil.
• Eastern and Western philosophies interpenetrate modern thought.