Interpenetrate/ˌɪntərˈpenɪtreɪt/ Definition 1 of 3Pro Tip 1/3Sensory Blend Use to describe how senses, like taste or sight, combine in a complex manner. The colors in the painting interpenetrate to give an illusion of depth. Pro Tip 2/3Intangible Merge Often used for abstract concepts, not just physical mixing. The two cultures interpenetrate so deeply that their origins become indistinct. Pro Tip 3/3Metaphorical Use Can be used metaphorically to describe concepts like ideas or emotions merging together. Their ideas interpenetrate, creating a shared understanding.