How Words Ending in -ment Form Nouns

Getting Started with -ment

Many English nouns are built by adding -ment to a verb. The ending usually names an action, a process, a result, or a condition. From "develop" we get "development"; from "agree" we get "agreement"; from "govern" we get "government."

Words with this ending show up everywhere: treatment, movement, investment, requirement, equipment, statement, department, management, environment, and development. They are common in ordinary conversation, but they are especially frequent in business, school, law, and official writing. Once you know how -ment behaves, you can improve your spelling and make better guesses about unfamiliar words.

What -ment Means and Where It Came From

The ending -ment traces back to Latin -mentum, a noun-forming suffix attached to verbs. English received many of these words through Old French, where Latin forms ending in -mentum had already been shortened into -ment. That history is one reason -ment often feels at home in formal or Latinate vocabulary.

Most -ment nouns fall into a few related meaning groups:

• The state or condition of something: contentment (the condition of being content), excitement (the state of being excited), amazement (the state of being amazed).
• The result of an action: statement (what results from stating), agreement (what results from agreeing), achievement (what results from achieving).
• The means, tool, or instrument used: ornament (something used for decorating), instrument (a means of carrying out an action), equipment (things used for equipping).
• The action or process itself: assessment (the act or process of assessing), management (the act of managing), development (the process of developing).

These categories are useful because they show how one small ending can shift a verb into a noun with a predictable meaning. For more on word parts, see our guide to word roots, prefixes, and suffixes.

How to Spell Words with -ment

Basic Pattern: Add -ment to the Base

In most cases, you attach -ment directly to the verb: manage → management, develop → development, invest → investment, govern → government, treat → treatment, move → movement, announce → announcement, arrange → arrangement, enjoy → enjoyment, employ → employment, pay → payment, achieve → achievement, retire → retirement, require → requirement, embarrass → embarrassment, agree → agreement, amuse → amusement, state → statement, amaze → amazement.

When the verb already ends in -e, that final -e usually remains: arrange → arrangement, achieve → achievement, manage → management, amaze → amazement.

Special Case: Bases Ending in -dge

Verbs that end in -dge commonly lose the final -e before -ment: judge → judgment in American English, while British English often writes "judgement." The same pattern appears in acknowledge → acknowledgment in American English and acknowledgement in British English.

Special Case: Final -y Words

With many suffixes, a final -y changes to -i. With -ment, it usually does not: deploy → deployment, enjoy → enjoyment, employ → employment. Not every -y verb forms a -ment noun, though; for example, betray gives us betrayal, not a -ment form. A smaller set does change, as in merry → merriment.

When a Final -e Stays or Disappears

The usual spelling keeps the -e: refine → refinement, advertise → advertisement, excite → excitement, achieve → achievement. One major exception is argue → argument, which drops the -e. Because of that missing letter, "argument" is a commonly misspelled word.

Making Nouns from Verbs with -ment

The -ment ending is a productive way to turn verbs into nouns. The examples below are grouped by the kind of meaning the noun usually carries.

Processes and Actions

Manage → management, assess → assessment, measure → measurement, recruit → recruitment, replace → replacement, employ → employment, govern → government, punish → punishment, engage → engagement, establish → establishment, develop → development, assign → assignment, invest → investment.

Outcomes and Finished Results

Agree → agreement, achieve → achievement, state → statement, improve → improvement, announce → announcement, settle → settlement, refine → refinement, commit → commitment, arrange → arrangement, entitle → entitlement, embed → embedment, assign → assignment.

Feelings, States, and Conditions

Excite → excitement, amaze → amazement, resent → resentment, disappoint → disappointment, bewilder → bewilderment, content → contentment, embarrass → embarrassment, fulfill → fulfillment, detach → detachment, amuse → amusement, enchant → enchantment, astonish → astonishment.

Frequent -ment Words Grouped by Use

Work, Business, and Organizations

Management, investment, employment, development, department, equipment, requirement, agreement, assessment, assignment, achievement, advertisement, appointment, commitment, endorsement, engagement, environment, establishment, fulfillment, government, improvement, increment, judgment, measurement, procurement, recruitment, retirement, settlement, statement.

Feelings and Mental States

Excitement, enjoyment, resentment, contentment, amazement, amusement, astonishment, bewilderment, disappointment, embarrassment, enchantment, fulfillment, merriment, sentiment.

Science, Tools, and Technical Vocabulary

Instrument, measurement, experiment, equipment, element, segment, fragment, filament, pigment, compartment, environment, development, implement, supplement, treatment.

Legal and Governmental Language

Government, amendment, judgment, punishment, settlement, imprisonment, indictment, parliament, enactment, enforcement, entitlement, endowment, document, department, commitment, commandment, assessment, arraignment, compartment, testament.

How -ment and -tion Compare

Both -ment and -tion can turn verbs into nouns. The difficult part is that English does not always make the choice obvious. Some verbs pair with -ment, others with -tion, and a few have related forms with different meanings.

• Replace: replacement is the accepted -ment noun; "replacation" is not a standard word.
• Inform: information is the standard form; "informment" is not used.
• Excite: excitement is the everyday word, while excitation is more likely in scientific or technical writing.
• Commit: commitment and commission come from related roots but mean different things.

No dependable spelling rule tells you in advance which suffix a verb will take. Reading widely and checking a dictionary are the safest ways to learn the accepted forms.

Spellings That Often Cause Trouble

• Fulfillment/Fulfilment: American English writes fulfillment with double-L; British English commonly writes fulfilment with single-L.
• Acknowledgment/Acknowledgement: American English usually drops the -e, while British English keeps it.
• Environment: Do not leave out the -n-. The spelling connects to "environ."
• Government: The -n- from "govern" remains, even though people sometimes say or write "goverment."
• Judgment: American English usually uses judgment without the -e; British English often uses judgement. Both fit their dialects.
• Argument: There is no extra -e- before -ment. The incorrect spelling is "arguement."

Writing Well with -ment Nouns

Like other nominalizations, -ment nouns can make a sentence sound heavy if you pile them up. Compare these two versions:

• Wordy: "The implementation of the payment system caused a reduction in the department's processing time."
• Clearer: "Implementing the payment system reduced how long the department needed to process requests."

The clearer sentence uses stronger verbs and fewer abstract nouns. As our clear writing guide explains, active verbs often make prose easier to read.

Still, -ment nouns are often exactly what you need. In "The government changed the equipment requirements," the nouns "government" and "requirements" name specific things, and no simple verb form would do the same job as neatly.

Suffixes That Work in Similar Ways

English has several noun-making suffixes besides -ment. Learning them together makes word formation easier to recognize:

• -al: Forms nouns from verbs: approval, removal, arrival, refusal, denial.
• -ance / -ence: Forms nouns from verbs or adjectives: dependence, tolerance, performance, reference.
• -ness: Forms nouns from adjectives: kindness, darkness, happiness.
• -tion / -sion: A very common noun-forming ending. See our -tion guide.

Try It Yourself

1. Form the -ment noun: judge (judgment), manage (management), achieve (achievement), require (requirement), govern (government), argue (argument), amaze (amazement), develop (development), commit (commitment), employ (employment).
2. Find the original verb: resentment (resent), advertisement (advertise), fulfillment (fulfill), enchantment (enchant), bewilderment (bewilder).
3. Pick -ment or -tion: assess → assessment. create → creation. invest → investment. celebrate → celebration. replace → replacement. inform → information.

Final Takeaway

The suffix -ment is a central pattern in English noun formation. It helps create common words such as "management," "government," and "statement," along with more specialized terms such as "arraignment" and "procurement." If you learn the main spelling patterns, watch for exceptions like "argument" and "judgment," and avoid overloading sentences with abstract nouns, -ment words will become easier to spell, understand, and use with confidence.