slip-up

From the verb phrase slip up.

• (Received Pronunciation, General American) IPA^(key): /ˈslɪpʌp/

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slip-up (plural slip-ups)

1. (idiomatic) A (small) error or mistake; a (minor) misstep.

   I think she will forgive an accidental slip-up, so don’t worry too much about misspeaking.

   • 2012 June 29, Kevin Mitchell, “Roger Federer back from Wimbledon 2012 brink to beat Julien Benneteau”, in The Guardian‎, archived from the original on 15 November 2016:

     For the second year in a row at Wimbledon, Roger Federer went to five sets against a Frenchman but this time there would be no slip-ups.

• slipup

• pi plus, pi-plus, pipuls, pupils, suppli, supplì