Emphasise
Usage notes
The "s" spelling has co-existed with the "z" spelling for at least 150 years (Thackeray wrote emphasised), and is becoming more common in the UK, with the "z" spelling gradually falling out of usage.
The "s" spelling has co-existed with the "z" spelling for at least 150 years (Thackeray wrote emphasised), and is becoming more common in the UK, with the "z" spelling gradually falling out of usage.