1.
All- is added to nouns or adjectives in order to form adjectives which describe something as consisting only of the thing mentioned or as having only the quality indicated.
...an ~star cast...
...~cotton sheeting.
COMB in ADJ: usu ADJ n
2.
All- is added to present participles or adjectives in order to form adjectives which describe something as including or affecting everything or everyone.
Nursing a demented person is an ~consuming task...
COMB in ADJ: usu ADJ n
3.
All- is added to nouns in order to form adjectives which describe something as being suitable for or including all types of a particular thing.
He wanted to form an ~party government of national unity...
COMB in ADJ: usu ADJ n