undoing a lock; unlocking

to undo a lock; to unlock

boarding the wrong vehicle; misboarding

to board the wrong vehicle; to misboard

(attributive) the state of being shaped like a circle or ring; annularity, orbicularity, circularity, cyclicality, cricoidness, etc.

(only in the negative) harm to life

(attributive) the state of being like a wing; wing-likeness, alar-ness, alary-ness, pterygoid-ness, etc.

going upstream

to go upstream

(literally) on the chopping board / (figuratively) Used to describe being under consideration.