字消し is read as じけし (jikeshi) and means eraser.
じけし
jikeshi
じけしばん
eraser shield
じびき
dictionary
じすう
number of characters
じけい
character style
じびきがくもん
superficial learning
とりけし
cancellation
うちけし
negation
ひけし
(Edo-period) fireman
ひょうじとりけし
unpost
もみけし
hush-up
いんくけし
ink eraser
まちびけし
local fire brigade