Meaning of the word "overwhelmed"

overwhelmed
To engulf, surge over and submerge.
[verb]
Examples:
The dinghy was overwhelmed by the great wave.
To overpower, crush.
[verb]
Examples:
In December 1939 the Soviet Union attacked Finland with overwhelming force.
To overpower emotionally.
[verb]
Examples:
He was overwhelmed with guilt.
To cause to surround, to cover.
[verb]