Αγγλικά (en) 
- o μπροστάρης, το πρόβατο με ένα κουδούνι στο λαιμό του, που οδηγεί ένα κοπάδι
- "Several old ladies forthwith proclaimed their intention of following him; but, as one or two of them were deaf, and another had been threatened with an attack of that mild, but obstinate complaint, dementia senilis, many thought it was not so much the force of his arguments as a kind of tendency to jump as the bellwether jumps, well known in flocks not included in the Christian fold." (Oliver Wendell Holmes, Sr., Elsie Venner, κεφ. XXXI, 1861)
- οτιδήποτε είναι ενδεικτικό μελλοντικών εξελίξεεν
- A stock or bond that is widely believed to be an indicator of the overall market's condition.