erupt

As verbs the difference between upset and erupt

is that upset is to make (a person) angry, distressed, or unhappy while erupt is to violently eject.

As an adjective upset

is (of a person) angry, distressed or unhappy.

As a noun upset

is (uncountable) disturbance or disruption.

As verbs the difference between erupt and occur

is that erupt is to violently eject while occur is to happen or take place.

As a verb erupt

is to violently eject.

As an adjective undefined is

lacking a definition or value.

As a verb erupt

is to violently eject.

As a noun blowup is

an explosion, or violent outburst.

As verbs the difference between outburst and erupt

is that outburst is to burst out while erupt is to violently eject.

As a noun outburst

is a sudden, often violent expression of emotion or activity.

As verbs the difference between erupt and surge

is that erupt is to violently eject while surge is (lb) to rush, flood, or increase suddenly.

As a noun surge is

a sudden transient rush, flood or increase.

As verbs the difference between rupture and erupt

is that rupture is (intransitive) to burst, break through, or split, as under pressure while erupt is to violently eject.

As a noun rupture

is a burst, split, or break.

As a verb erupt

is to violently eject.

As a noun vomit is

vomit.

As verbs the difference between shiver and erupt

is that shiver is to break into splinters or fragments or shiver can be to tremble or shake, especially when cold or frightened while erupt is to violently eject.

As a noun shiver

is a fragment or splinter, especially of glass or stone or shiver can be the act or result of shivering.

As a verb erupt

is to violently eject.

As a noun break is

break.