The -tion ending

One chunk, one sound: /ʃən/. Read it whole and four-syllable words become manageable.

Word endings

-tion SUFFIX_TION_01

Strong rule · High reliability · Very common · Intermediate · Reading and spelling

• /ʃən/ -tion: nation, station, action

Where Wiggler teaches it: Skill 13: Suffixes

Child explanation

Tion says /shun/. It is one chunk — do not try to read the t, i, o and n one at a time.

The rule

The ending -tion is pronounced /ʃən/ and is read as a single chunk. It is always unstressed, and the syllable before it always carries the stress.

What is really going on

The ti in -tion is a single grapheme for /ʃ/, produced by palatalisation of Latin -tio before a following vowel. Because the suffix is always unstressed and always pulls stress onto the preceding syllable, recognising it also tells a reader where to put the emphasis — which is unusual and useful.

Position in the word

• End of a word — Always word-final. For example: nation, station, action.

Examples

Easy examples

nation, station, action, motion, fiction

More examples

question, section, mention, attention, direction, invention, collection, education, information, celebration

Pseudo-words

Made-up words that follow the rule. A child who reads these has the pattern rather than the vocabulary.

blation, shuption, frantion

Exceptions

• -stion: question, suggestion, digestion. After s, the ti is /tʃ/ rather than /ʃ/.

Contrast pairs

• nation versus national — The same root, different stress and vowels.
• action versus auction — Similar shape, different vowel.

Teacher note

Teach -tion as one visual chunk from the moment it appears, and have children cover it and read the root: na-, sta-, ac-. That two-step approach makes information and celebration readable years earlier than letter-by-letter decoding would.

Learn these first

• SH — sh — The most reliable digraph in English. One sound, one spelling, no exceptions a child will meet.
• Syllable division — VC/CV · V/CV · VC/V — Where you split a word decides whether its vowel is long or short. Three patterns cover most of English.

Related rules

• The -sion and -cian endings — -sion / -cian — -cian is /ʃən/ like -tion. -sion is /ʃən/ after a consonant and /ʒən/ after a vowel — mission versus vision.
• The -ture ending — -ture — Pronounced /tʃər/ — picture, nature, future. The t is not /t/, which is why letter-by-letter decoding fails here.
• Latin spelling patterns — -tion / -sion / prefixes / silent scholarly letters — The -tion and -sion endings, the common prefixes, and the letters Renaissance scholars inserted into debt and doubt to show a Latin root.
• Decoding a long word — prefix + root + suffix — Peel the affixes first, then divide what is left, then flex the vowels. A four-syllable word is a sequence of one-syllable problems.
• Stress — STRESSED · unstressed — Which syllable is emphasised changes the vowels around it — and in some words it changes what the word means.

• Previous in Word endings: The -ly ending — -ly — Adds a syllable and turns a describing word into how something is done. The root almost never changes.
• Next in Word endings: The -sion and -cian endings — -sion / -cian — -cian is /ʃən/ like -tion. -sion is /ʃən/ after a consonant and /ʒən/ after a vowel — mission versus vision.
• All reading rules

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