| A | B |
|---|
| in loco parentis | in the place of a parent |
| laissez faire | non-interference; tolerance; the belief in or policy of not interfering in the lives of others |
| mercurial | changeable; animated; quick-witted |
| modus operandi | manner of working |
| nouveau riche | newly rich |
| par excellence | above all others |
| per annum | by the year |
| per capita | by the head; per person; for each person |
| per diem | by the day |
| per se | by itself; if something exists per se, for instance, it exists by itself, regardless of external factors |
| piece de resistance | the main dish, the main event |
| post facto | after the fact |
| quid pro quo | something in return; something for something |
| rendezvous | an appointment or meeting |
| RSVP | stands for "Repondez s'ils vous plait"; please reply |
| savoir-faire | knowing the right thing to do; the knowledge of what to do in a social situation |
| semper fidelis | always faithful (the Marines' motto is Semper Fi) |
| status quo | the existing condition; the current or existing state of affairs; the way things are |
| terra firma | solid ground |
| tour de force | feat of skill or strength; a remarkable feat |
| tout de suite | at once |
| vice versa | the other way around |
| vis-a-vis | face to face; it is used more widely as a preposition meaning "compared to" |
