Thanks accepted by the Spanish and others (2,2)

I believe the answer is:

et al

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'and others' is the definition.
(short for 'et alia', 'and others' in Latin)

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for et al that I've seen before include "And others (abbrev.)" , "and everyone else)" , "Latin notation meaning and others" , "And others (abbr)" , "'And others, to the old Romans (2,2)'" .)

I've seen this clue in The Telegraph and The Sun.

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