afoot adjective [not before noun]: being planned; happening 

". The limits of my language are the limits of my world"

". A friend is a gift you give yourself "

". Holding a grudge is like drinking poison and hoping the other person will die"

". It's easier to forgive an enemy than to forgive a friend "

flat rate noun : a price that is the same for everyone and in all situations

herder noun : a person whose job is to take care of a group of animals such as sheep and cows in the countryside

wrong-headed adjective : having or showing bad judgement

chez preposition (from French ): at the home of

welkin noun [U] (literary or old use ): the sky or heaven

briny adjective (of water): containing a lot of salt  salty

future-proof adjective, verb : ◊ adj. (business or technical ) : designed to continue working or to be effective after changes that may happen in the future ◊ verb_sth : to make sth future-proof

grey matter (especially BrE) (NAmE usually gray matter) noun [U] (informal): a person's intelligence