aback /ə-bakˈ/

1. Backwards
2. Said of sails pressed backward against the mast by the wind (nautical)

• oscitation
• oscitations
• oscula
• osculant
• oscular
• osculate
• osculated
• osculates
• osculating
• osculating orbit
• osculating orbits
• osculation
• osculations
• osculatories
• osculatory
• oscule
• oscules
• osculum
• -ose
• oseltamivir
• oseltamivirs
• OSF
• OSHA
• oshac
• oshacs