[1] : WordNet (r) 2.0

swallow up
     v : enclose or envelop completely, as if by swallowing; "the
         huge waves swallowed the small boat and it sank shortly
         thereafter" syn: immerse, swallow, bury, eat up
see also:
immerse swallow bury eat up 

[2] : Moby Thesaurus II by Grady Ward, 1.0

62 moby thesaurus words for "swallow up":
   ablate, absorb, assimilate, bleed white, bring to ruin, burn up,
   condemn, confound, consume, damn, deal destruction, decimate,
   deplete, depredate, desolate, despoil, destroy, devastate, devour,
   digest, dissolve, drain, drain of resources, eat, eat up, engorge,
   erode, exhaust, expend, finish, finish off, gobble, gobble up, gut,
   gut with fire, havoc, impoverish, incinerate, ingest, lay in ruins,
   lay waste, ravage, ruin, ruinate, shipwreck, spend, squander,
   suck dry, swallow, throw into disorder, unleash destruction,
   unleash the hurricane, upheave, use up, vandalize, vaporize, waste,
   waste away, wear away, wrack, wreak havoc, wreck

Ball Up >> B Words
Ball Up, definition of term: Ball Up
ball+up_pag1.html

Bang Up >> B Words
Bang Up, definition of term: Bang Up
bang+up_pag1.html

Backed Up >> B Words
Backed Up, definition of term: Backed Up
backed+up_pag1.html

Back Up >> B Words
Back Up, definition of term: Back Up
back+up_pag1.html

Ante Up >> A Words
Ante Up, definition of term: Ante Up
ante+up_pag1.html

Act Up >> A Words
Act Up, definition of term: Act Up
act+up_pag1.html