understandable, predictable, comfortable, reasonable, believable.

-ible:

edible, credible, audible, legible, negligible.

-sion:

expansion, inclusion, admission, confusion, permission.

-tious:

infectious, nutritious, cautious, ambitious, factitious.

-cious:

conscious, precocious, selfconscious, pernicious, atrocious.

Confession

Conscientious

visible

Conscious

Hope that helps

edible

fusion

cautious

suspicious

responsible

suspension

pretentious

suspicious

table

fable

appliable

durable

curable

movable

risible

bible

alible

audible

frible

tension

collusion

collision

mansion

pension

illusion

cautious

captious

propitious

negotious

fictious

spacious

feracious

voracious

precious

gracious