Words ending in -ssion
expression
permission
admission
discussion
impression
confession
omission
concussion
procession
obsession
To spell words with ending in ‘-tion’
invention
nomination
hesitation
selection
injection
completion
migration
action
stagnation
communication
words where ‘au’ makes an /or/ sound
automatic
cause
August
author
launch
applaud
haul
autumn
astronaut
audience
Challenge words
business
breath
although
caught
different
extreme
medicine
exercise
thought
possession
Words ending in ‘-ious’ and ‘-eous
victorious
curious
obvious
furious
gaseous
spontaneous
serious
courteous
hideous
various
Words ending with -ous
poisonous
dangerous
mountainous
marvellous
perilous
tremendous
enormous
jealous
precious
disastrous
expansion
extension
comprehension
tension
suspension
exclusion
provision
explosion
erosion
invasion
complete
continue
experiment
famous
favourite
February
naughty
material
knowledge
remember
chef
chalet
machine
brochure
parachute
chute
chaperone
chandelier
crochet
quiche
information
sensation
preparation
vibration
decoration
donation
duration
registration
population
determination
Words ending in ‘-ation’
information
sensation
preparation
vibration
decoration
donation
duration
registration
population
determination
increase
opposite
believe
interest
grammar
women
straight
strength
calendar
appear
interact
intercity
international
interfere
interview
intercept
intercom
internet
interchange
interface
submarine
subdivide
subject
substandard
subway
subheading
submerge
subtitle
subtropical
submit
Words with the prefixes ‘il-’, ‘im-’ and ‘ir-’
illegal
irrelevant
immature
immortal
irregular
imperfect
impossible
impatient
illegible
irresponsible
Words with the prefix ‘in-’ meaning ‘not’
inactive
indefinite
incorrect
inelegant
invisible
incurable
insecure
inability
inflexible
inadequate
Words that are homophones or near homophones
accept
except
knot
not
peace
piece
plain
plane
weather
whether