吉
=
口
+
士
:
Mnemonic symbol: "Giga" stems from a Greek word for "giant", so I'll represent 吉 by a giant.
吉
=
口
+
士
:
The giant just arrived at the space station and is very hungry. In each hand he holds Joan of Arc and the bachelor captive and robs them for their mandarins which he longs for.
田
=
囗
+
十
:
Mother Teresa (ti) wants to plant a field (田) of crosses (十) in the anthill's kitchen (an2). She ordered an enclosure (囗) full of crosses (十) and puts them up one by one.