0 behaviour or speech that is not sincere: --
She has so many little affectations.
"It doesn't concern me," he said with an affectation of nonchalance.
1 speech or behavior that is not natural or sincere and is used to produce a certain effect: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Vi kan slutföra det steg för steg hur lång vägen än är och den kan inte slutföras hur kort vägen än är om du inte ens markerar ditt fotavtryck.