- [noun] any entry into an area not previously occupied; "an invasion of tourists"; "an invasion of locusts"
Synonyms: invasion, encroachment
- [noun] entrance by force or without permission or welcome
- [noun] the forcing of molten rock into fissures or between strata of an earlier rock formation
- [noun] rock produced by an intrusive process
- [noun] entry to another's property without right or permission
Synonyms: trespass, encroachment, violation, usurpation