Illative is, in the Finnish language, the third of the locative cases with the basic meaning of "into".
The other locative cases in Finnish are:
... explorers (in alphabetic order by surname): Table of contents 1 A 2 B 3 C 4 D 5 E 6 F 7 G 8 H 9 I 10 J 11 L 12 M 13 N 14 O 15 P 16 ...