semeion /sē-mīˈon/

1. (in ancient prosody) the unit of time
2. One of the two divisions of a foot
3. A mark of metrical or other division

• billons
• billow
• billowed
• billowier
• billowiest
• billowing
• billows
• billowy
• billposter
• billposters
• bills
• billsticker
• billy
• billyboy
• billyboys
• Billy Bunter
• billy-can
• billycock
• billycocks
• billy goat
• billy goats
• billy-o
• billy-oh
• bilobar
• bilobate