gaffe or (rare) gaff /gaf/

A blunder

• abamperes
• aband
• abanded
• abanding
• abandon
• abandoned
• abandonedly
• abandonee
• abandonees
• abandoning
• abandonment
• abandonments
• abandons
• abandon ship
• abandonware
• abands
• abas
• abase
• abased
• abasement
• abasements
• abases
• abash
• abashed
• abashedly