deceit, cheat, delude
欺 centers on intentional deception: tricking someone through deceit, cheating, or deluding them into believing something false.
欺 combines 其 (a winnowing basket, here likely used phonetically for 'gi') with 欠 (open mouth, suggesting breath or speech), together conveying the idea of speaking falsely or deceiving.
The left side 其 looks like a basket, and the right side 欠 is a person with an open mouth. Imagine someone hiding behind a basket, speaking lies to cheat you.
For ギ, picture a deceitful person giving you a fake key: key -> ギ, but the key opens nothing because it's a trick.
fraud; swindle; graft; cheating; trick; scam
to deceive; to delude; to trick; to fool
deception; deceit
fraud; fraudulence; dupery; hoax
telephone fraud where the caller pretends to be a relative of the victim
phone scam involving a pretended relative
crab meat mail-order fraud
clickbaiting; giving something a misleading title
Nigerian fraud; 419 fraud
online fraud
phishing
romance scam
one-click fraud (online fraud and extortion technique used by spammers)
one-ring fraud (attempt to encourage a return call to a fraudster's number)
confidence game
confidence trick
petty swindling; petty swindler
lying about one's age; age fabrication
remittance fraud; bank transfer scam
in fooling the enemy first deceive your allies