office boy a young man who is employed to do odd jobs in a business office
officially in an authoritative role
officious intrusive in a meddling or offensive manner
office place of business where professional duties are performed
officer a member of a police force
efficacy capacity or power to produce a desired result
official of or relating to a place of business
effaceable capable of being effaced
office block a building containing offices where work is done
officiate perform a ceremony or religious ritual
efficient being effective without wasting time, effort, or expense
efficiency skillfulness in avoiding wasted time and effort
efface remove by or as if by rubbing or erasing
affinity a natural attraction or feeling of kinship
offset a compensating equivalent
efficacious giving the power to produce an intended result
office-bearer the person who holds an office
offside (sport) the mistake of occupying an illegal position on the playing field (in football, soccer, ice hockey, field hockey, etc.)
offer up present as an act of worship
officiously in an officious manner