conceited | pretentious

pretentious
abbr.	hifalutin

| or

OR
abbr. IT	Logical OR; Originator / Recipient
abbr. math. scient.	Odds Ratio
abbr. med.	Orbicularis Oris
abbr. mil.	Operational Readiness; Operations Research
abbr. physiol. med.	Open Reduction; Oriented
abbr. scient.	Oak Ridge Operations Office

supercilious