›the act of using something new or different instead of something else, or the new thing that is used: the substitution of sth (for sth)The government plans to encourage the substitution of cheap generic drugs for expensive brand-name ones.Telecommuting is not a substitution for child care.
In London but at the station: prepositions for talking about travel
by Liz Walter,
September 02, 2015
Several readers have asked for information on prepositions, so I will start with a blog post that looks at an area where they are really important: travel. The first thing to remember is that we use to (and not ‘in’) after the verb go: We are going to London. I went to