tion sion ssion cian /shun/ usually /zhun/ but not always /shun/ /shun/

590 62 39 12

alphabetical order

verb ends split digraph + <d> = /zhun/

<d> by itself = /shun/ verb ends <ss>

jobs

abbreviation abrade abrasion aggress aggression beautician

abduction allude allusion compress compression dietician

abolit ion coll ide coll ision concuss concussion electrician

abortion collude collusion confess confession magician

absorption conclude conclusion depress depression mathematician

abstention corrode corrosion discuss discussion musician

abstract ion decide decision express expression obstetrician

accelerat ion delude delusion impress impression optician

accommodation divide divis ion obsess obsession paediatrician

accreditation i l lude (old) disi l lusion oppress oppression physician

accumulation erode erosion percuss percussion polit ician

accusation evade evasion possession possession technician

acidif ication exclude exclusion profess profession

acquisit ion explode explosion progress progression cion

action i l lude (old) i l lusion regress regression 2

activation include inclusion repossess repossession coercion

adaptation (in)decide indecision repress repression suspicion

addiction intrude intrusion suppress suppression

addition invade invasion transgress transgression

adjudication persuade persuasion verb ends cede/ceed Odd Ones

administration provide provision accede accession shion

admiration subdivide subdivision concede concession 2

admonition apprehend apprehension proceed procession cushion

adoption comprehend comprehension recede recession fashion

adoration expand expansion secede secession

affectation pretend pretension succeed succession xion

affection suspend suspension 2

aff i l iation root ends /s/ or /z/ - no vowel added verb ends <mit> complexion

affirmation confuse confusion admit admission crucif ixion

affl iction diffuse diffusion commit commission

aggravation disperse dispersion emit emission

aggregation fuse fusion omit omission

agitation hypertense hypertension remit remission

alienation immerse immersion submit submission

allegation infuse infusion transmit transmission

allocation precise precision mission

alteration revise revision

altercation supervise supervision No obvious pattern

amalgamation televise television passion compassion

ambition tense tension session

ammunition transfuse transfusion

amplif ication vis ion

animation root ends /vert/

anticipation avert aversion

applicat ion convert conversion

apportion divert diversion

appreciat ion invert inversion

appropriation revert reversion

approximation subvert subversion

arbitration version

articulation root ends /l/ or /r/ - no vowel added

aspiration adhere adhesion

assassination cohere cohesion

assert ion compel compulsion

assimilat ion expel expulsion

association incur incursion

assumption excursion

attention No obvious pattern

attraction dimension occasion

attribution emulsion pension

auction lesion revulsion

audition

authorisation

automation

aviation

bastion

calculation

calibration

cancellation

caption

carnation

causation

caution

celebrat ion

certif ication

cessation

characterisation

circulation

citation

civil isation

civil isation

clar if ication

classif ication

coal it ion

collaboration

collection

collocation

combination

combustion

commotion

communication

compensation

competition

compilation

completion

complication

composition

computation

concentrat ion

conception

conci l iation

condemnation

condensation

condition

confederation

configurat ion

confirmation

confiscation

conformation

confrontation

congestion

congregation

conjunction

connection

connotation

conscription

conservation

consideration

consolation

consol idation

constel lation

constipation

constitution

construction

consultation

consumption

contamination

contemplation

contention

continuation

contraception

contract ion

contradiction

contravention

contribution

conurbation

convention

conversation

conviction

convocation

co-operation

coordination

coronation

corporation

correction

correlation

corruption

creation

cremation

culmination

cultivation

decentralisation

deception

declaration

decomposition

decoration

dedication

deduction

defamation

defection

definit ion

deforestation

deformation

degradation

delegation

deletion

deliberation

demarcat ion

demolit ion

demonstration

denomination

denunciation

depiction

depletion

deportation

deposition

depreciation

deprivation

deregulation

derivation

description

desertion

designation

desolation

desperation

destination

destruction

detection

detention

deterioration

determination

devaluation

devastation

deviation

devolution

devotion

differentiation

digestion

dilution

diminution

direction

discretion

discr imination

disintegration

dislocation

dispensation

disposition

disqualif ication

disruption

dissatisfaction

dissemination

dissertat ion

dissociation

dissolution

distinction

distortion

distraction

distribution

diversif ication

documentation

domination

donation

duplication

duration

edition

education

elaboration

elation

election

elevation

el imination

emancipation

emigrat ion

emotion

emulation

equation

eradication

erection

eruption

escalation

estimation

evacuation

evaluation

eviction

evolution

exaggeration

examination

exasperation

excavation

exception

excitation

exclamation

excretion

execution

exemption

exertion

exhaustion

exhibition

exhortation

expectat ion

expedition

experimentation

explanation

exploitation

explorat ion

exposit ion

extinction

extraction

extradition

fabrication

faction

fascination

federation

f iction

f i ltration

f ixation

f lotation

f luctuation

formation

formulation

fortif ication

foundation

fraction

fragmentation

friction

frustration

function

generalisation

generalisation

generation

gestation

graduation

gratif ication

habitation

hallucination

hesitation

humiliation

hybridisation

identif ication

ignition

i l lumination

i l lustrat ion

imagination

imitation

immigration

imperfection

implementation

implication

importation

imposition

improvisation

inauguration

incarnation

inception

inclinat ion

incorporat ion

incubation

indication

indignation

induction

industrialisation

infarction

infection

infi ltration

inflammation

inflation

information

ingestion

inhibition

init iation

injection

injunction

innovation

inquisit ion

inscription

insertion

inspection

inspiration

installat ion

institution

instruction

instrumentation

insulation

insurrection

integration

intensif ication

intention

interaction

interception

interconnection

interpretation

interrogation

interruption

intersect ion

intervention

intimidation

intonation

introduction

intuition

invention

investigation

invitation

irradiation

irrigation

irritation

isolation

iteration

junction

jurisdiction

justif ication

juxtaposition

legislation

l iberation

l imitation

l iquidation

l it igation

location

lotion

magnification

manifestation

manipulation

maturation

mediation

medication

meditation

mention

migration

misconception

misrepresentation

mobilisation

moderation

modernisation

modernisation

modificat ion

modulation

motion

motivation

multiplication

mutation

nation

nationalisation

navigation

negation

negotiation

nomination

notation

notif ication

notion

nutrit ion

objection

obligation

observat ion

obstruction

occupation

operation

opposition

option

ordination

organisation

organisation

orientation

osci l lation

ovation

oxidation

participat ion

partit ion

penetration

perception

perfection

persecution

petit ion

plantation

polarisation

pollution

population

portion

position

potion

precaution

precipitation

precondition

prediction

preoccupation

preparation

prescription

presentation

preservation

presumption

presupposition

prevention

privatisation

probation

proclamation

production

prohibition

projection

proliferation

promotion

pronunciation

propagation

proportion

proposition

prosecution

prostitution

protection

provocation

publication

punctuation

purif ication

qualif ication

quantif ication

question

quotation

radiation

ratif ication

ration

rationalisation

reaction

realisation

reception

reclamation

recognition

recol lection

recommendation

reconcil iation

reconstruction

recreation

recrimination

rectif ication

redemption

redistribution

reduction

reflection

reformation

regeneration

registration

regulation

rehabilitation

rejection

relation

relaxation

relegation

relocation

remuneration

renovation

renunciation

reorganisation

reparation

repatriation

repetit ion

replication

representation

reproduction

reputation

resect ion

reservation

resignation

resolution

restitution

restoration

restriction

resumption

resurrection

retaliation

retention

retribution

reunification

revaluat ion

revelat ion

revolution

rotation

salvation

sanction

satisfaction

saturation

secret ion

section

seduction

segmentation

segregation

selection

sensation

separation

simplif icat ion

simulation

situation

solution

sophistication

specialisation

specialisation

specif ication

speculat ion

starvat ion

station

st imulation

st ipulation

stratif ication

subordination

subscription

subsection

substitution

suggestion

superstit ion

supposition

taxation

telecommunication

temptation

termination

traction

tradition

transact ion

transcription

transformation

transition

translation

transplantation

transportation

tuit ion

ulceration

unif ication

vacation

vaccinat ion

validat ion

valuation

variat ion

vegetation

ventilation

verif ication

vibration

violat ion

vocat ion

westernisation

workstat ion