overwhelm

verb:to bury or drown beneath a huge mass of something, especially water
- The tidal wave threatened to overwhelm the coastal village.
verb:to defeat completely and decisively
- The army was able to overwhelm the enemy forces with a surprise attack.
verb:to give someone too much of something, such as information or tasks
- Please don't overwhelm me with information all at once.
verb:to have a strong emotional effect on someone, either positive or negative
- A sense of gratitude overwhelmed her as she accepted the award.