àrokò noun /à.ɾō.kò/
Definitions
  1. In traditional Yoruba society, a symbolic message sent as a form of communication between two entities. The purpose of the àrokò was to send a secret message in which only the two entities communicating would understand what the contents of the àrokò meant.
    Tí obìnrin tàbí ọkùnrin bá ránṣẹ́ òòyà bí àrokò sẹ́ni kejì wọn, ó túmọ̀ sí pé wọ́n fẹ́ pínyà ipò tọkọtaya If a man or a woman sends a comb as a symbolic message, it means that they intend to separate from their marriage
    Baṣọ̀run Gáà fi ẹyin oódẹ pàrokò ránṣẹ́ sí Aláàfin Basorun Gaa used a parrot egg as a symbolic message to the Alaafin.
  2. symbol, sign
Used in
èdè alárokòpàrokòverb
Source: Wiktionary, where this word is spelled “aroko”. Reference: en-aroko-yo-noun-QU7TL~cR