1. phrasal verb
If one thing is swallowed up by another, it becomes part of the first thing and no longer has a separate identity of its own.
[V P n] ⇒ During the 1980s monster publishing houses started to swallow up smaller companies. [Also V n P]
2. phrasal verb
If something swallows up money or resources, it uses them entirely while giving very little in return.
[V P n] ⇒ A seven-day TV ad campaign could swallow up the best part of £50,000.
[V-ed P] ⇒ Farmers could see a quarter of their income swallowed up by the interest rate rise. [Also V n P]
3. phrasal verb → swallow If a person or thing is swallowed up by something, they disappear into it so that you cannot see them any more.
[be V-ed P] ⇒ He headed back towards the flea market and was quickly swallowed up in the crowd.
[V P n] ⇒ Weeds had swallowed up the garden. [Also V n P]
COBUILD Advanced English Dictionary. Copyright © HarperCollins Publishers