('US') She shifted 'into' low/high 'gear'. = ('Brit') She changed 'into' bottom/top 'gear'. [=she changed to a gear that allows for a slower/faster rate of speed]
This discovery will bring about a 'paradigm shift' in our understanding of evolution. [=will cause people to understand evolution in a completely new way]
We need to 'shift ourselves' [='get moving'] if we're going to make it home before dark.
(..) I said yeah. I just thought we could use the extra cash. - Jonathan, we've talked about this. - I know, I know. You can't take shifts when I'm working. Mom, it's not a big deal. Look, he was at the Wheelers' all day. - I'm sure he just stayed over. - I can't believe you. (..)2016 TvShow: Stranger Things Title: Chapter One: The Vanishing of Will Byers Season: 1 Episode 1