IPA: //sɪˈdɛr.ənt//
KK: /sɛˈdɛrʌnt/
A long meeting or session where people gather to discuss something.
The committee held a sederunt to address the new policy changes.
Sederunt comes from the Latin 'sederunt', which is the third person plural form of 'sedere' (meaning to sit). The term originally referred to a sitting or meeting, particularly in a formal context.
Imagine a group of people 'sitting' ('sedere') together for a meeting — that's what 'sederunt' means.
No commonly confused words.