投とうじる

1. 1to throw ; to cast (e.g. vote, light, shadow)
2. 2to devote oneself (e.g. to a cause)
3. 3to invest ; to put in
4. 4to administer (medicine) ; to give
5. 5to abandon ; to surrender
6. 6to take advantage of ; to make full use of
7. 7to fit well with ; to match with ; to be in tune with
8. 8to stay (at a lodging)

JMdict entry 1447100 · frequency rank 19. Source and licence.