to say / to tell / to announce / to report / to denounce / to file a lawsuit / to sue

= + : Guy Fawkes is informing the golden calf that it is not allowed to eat mandarins any more in the aorta's bathroom by pointing at a big LED screen stating so.

= + : Mnemonic symbol: one of these LED panels with public announcements which scroll horizontally over the panel.

告 character breakdown

mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls

Mnemonic symbol: 口 shall be represented by a mandarin. Karl Marx (k-) is enjoying a mandarin in the outhouse's living room (ou3).
Character component without intrinsic meaning

= 丿 + : As ⺧ is a variant of 牛 I'm going to represent this character by a small cow: a golden calf.

Characters with 告 as component

zirconium (chemistry)
swan
center or bull's eye of an archery target (old) / goal / target
one of the five legendary emperors, also called 高辛氏[Gao1 xin1 shi4]
braces (med.) / fetters / manacles
variant of 造, to make / to build / to invent / to manufacture

Words with 告

post / announcement
hidden / kept secret / not to be divulged
posting on a bulletin board / notice / bulletin / to announce
to convey (a message) / to inform
to pass on (a message); to relay (the information)
begging for pity and asking for help (idiom)
to succeed through failure / to achieve one's final aim despite apparent setback
false report / forgery / fabricated declaration (e.g. income tax return)

Sentences with 告

wǒ
yào
dào
yù
dì
miàn
qián
gào
nǐ
yi̅
zhuàng