As a noun stairwell is

a shaft in a multi-story building enclosing a stairway or staircase.

Stairshaft is likely misspelled.

Stairshaft has no English definition.

As a noun stairwell is

a shaft in a multi-story building enclosing a stairway or staircase.

As verbs the difference between occuring and experiencing

is that occuring is misspelling of lang=en, the present participle of occur while experiencing is present participle of lang=en.

As an adjective convincing is

effective as proof or evidence.

As a verb convincing is

.

As a verb we is

see.

As nouns the difference between succour and contributer

is that succour is or succour can be while contributer is .

As a verb succour

is .

As a noun drill is

drill, exercise.

As a noun taxonomy

is the science or the technique used to make a classification.

As a verb emboss is

to mark or decorate with a raised design or symbol or emboss can be (label) of a hunted animal: to take shelter in a wood or forest.

As nouns the difference between mucosa and epithelium

is that mucosa is (anatomy) a mucous membrane while epithelium is epithelium.

As nouns the difference between maxim and dogma

is that maxim is a self-evident axiom or premise; a pithy expression of a general principle or rule while dogma is an authoritative principle, belief or statement of opinion, especially one considered to be absolutely true regardless of evidence, or without evidence to support it.

As a proper noun Maxim

is the Maxim gun, a British machine gun of various calibres used by the British army from 1889 until World War I.