This is the 6502nd most frequent Catalan word.
plego
"Pleco" in Catalan means "I fold" or "I close" (first-person singular present indicative of "plegar").
Here, 'plego' relates to folding or putting into a compact form.
Quan acabo, plego els papers de la taula.
When I finish, I fold the papers on the table.
In this case, 'plego' means to finish or end something, particularly a work shift.
Cada dia plego a les set de la tarda de la feina.
Every day I finish work at seven in the evening.
Here, 'plego' again refers to finishing, specifically indicating the conclusion of an activity or obligation.