'in touch' as in keep in touch is 'on reste en contact'
'expert' is 'expert' itself though pronounce differently
"au courant", or "informé"
au fait
It's a french fencing term meaning touch. It is used to commend someone making a clever point.
If you mean "touché", then it is a conjugation of the french verb "toucher" meaning "to touch". It is also a fencing term that acknowledges a touch or hit from your opponent's foil.
Hypoesthesia is the term of a diminished sense of touch.
Palpable means noticeable by touch.
'ringard, ringarde' is a slangish term meaning 'out-of-touch'. (The term 'ringard' is itself out of touch now.)
The French term for an outline or summary is "résumé."
'Coup De Grace' (pronounced coo-dee-grarse, a french term literally meaning 'blow of mercy') has a similar meaning. It is most commonly used to refer to a killing blow, but can be used in other contexts to mean finishing touch.
The word is incorrect. The actual term is "Prowess" meaning expert skill and ability.
Palpation is the medical term meaning using the sense of touch to examine the patient.
En Plein