(~d)
1.
If equipment or services are ~d, they are improved or made more efficient.
Helicopters have been ~d and modernized...
...~d catering facilities.
VERB: usu passive, be V-ed, V-ed, also V
•
Upgrade is also a noun.
...equipment which needs expensive ~s.
...~s in the level of security.
N-COUNT: usu pl
2.
If someone is ~d, their job or status is changed so that they become more important or receive more money.
He was ~d to security guard.
= promote
? downgrade
VERB: usu passive, be V-ed to n
3.
If you ~ or are ~d, you change something such as your air ticket or your hotel room to one that is more expensive.
You can ~ from self-catering accommodation to a hotel.
VERB: V, also V n