This is the 1465th most frequent Portuguese word.
antigos
"Antigos" means "old" or "ancient" in English.
Here, 'antigos' is used to refer to 'old' as in former or past, describing friends I had in the past.
Meus amigos antigos me mandaram uma carta ontem.
My old friends sent me a letter yesterday.
In this scenario, 'antigos' describes the age of documents, indicating that they are old or historical.
Encontrei documentos antigos no sótão.
I found old documents in the attic.
The word 'antigos' here refers to methods from the past, emphasizing their age in contrast to contemporary teaching methods.