=1

知

zhī

to know to be aware

=1

知

zhì

(obsolete on its own in Standard Chinese) Original form of 智 (zhì, “knowing, wisdom, intelligence”). Original form of 智 (zhì, “knowing, wisdom, intelligence”).

=2

底

de

(equivalent to 的 as possessive particle)

=2

底

dǐ

bottom; base background; foundation copy (of a manuscript or receipt etc) kept as a record (suffix) end of a year or month (math.) radix; base (abbr. for 底數 dǐshù)