Verb (5-dan, る, intransitive)
1.  to dive (into or under water)
2.  to get under;  to get into;  to get in;  to creep into;  to crawl under;  to bury oneself;  to burrow into;  to dig oneself into;  to snuggle under
3.  to hide oneself (esp. from the government);  to conceal oneself;  to go underground