STEP Hebrew Lexicon: שִׂיחַ

1) to put forth, mediate, muse, commune, speak, complain, ponder, sing

1a) (Qal)

1a1) to complain

1a2) to muse, meditate upon, study, ponder

1a3) to talk, sing, speak

1b) (Polel) to meditate, consider, put forth thoughts