The Hebrew word ophen (H655) can refer to a wheel (as in a chariot wheel) or metaphorically to a proper occasion, the right season, or an apt time. It appears in Proverbs 25:11 in its figurative sense — the right word spoken at the right moment.
The concept of ophen as "due season" or "proper time" reflects the Hebrew wisdom tradition's emphasis on discernment and divine timing. Just as a wheel turns with purpose and precision, so the wise person speaks and acts at the right moment. This concept is related to the Greek kairos — the appointed time — and to God's own sovereign timing in redemptive history.