9.4 Spelling Rules, Word Relationships, Acronyms & Idioms

Key Takeaways

  • NCRA's What is an Error? guide (March 2026) counts each misspelled word, including typos, as an error on the RSR, RPR, and RMR skills tests.
  • Final consonants double before a vowel suffix when the stress falls on the last syllable (occurred, admitted) but not when it falls earlier (benefited, offered).
  • Homophones sound alike but are spelled differently, homographs are spelled alike, synonyms share meaning, and antonyms have opposite meanings.
  • Acronyms are pronounced as words (HIPAA), initialisms are spoken letter by letter (FBI), and the article follows the sound: an FBI agent, a HIPAA form.
  • Writing out words in place of a dictated acronym, or the reverse, is scored as an error under NCRA's skills-test grading guide.
Last updated: September 2026

9.4 Spelling Rules, Word Relationships, Acronyms & Idioms

Quick Summary: The RPR job analysis lists spelling rules under the task "Produce accurate transcripts using proper spelling, word usage, and punctuation," and lists homophones, homonyms, synonyms, antonyms, acronyms, initialisms, phrases, and idioms under "Demonstrate a broad knowledge of vocabulary." This section covers the core English spelling patterns, the vocabulary terms for word relationships, how to write acronyms and initialisms, and idioms that are often misspelled. It also shows how NCRA's skills-test grading guide scores spelling-related choices.

Why Spelling Counts

Spelling errors are easy to see on the page and hard to defend. NCRA's grading guide for the RSR, RPR, and RMR skills tests, What is an Error? (last updated March 2026), counts each misspelled word, including typographical errors, as an error. It also counts a compound word written as two words (or two words written as one), and words used in place of an acronym or an acronym used in place of words. The guide notes that the skills tests are built on the punctuation rules in Merriam-Webster's dictionary, and a Merriam-Webster dictionary is on the job analysis reference list, so it is the natural first reference for spelling questions.

Choice on a skills testHow What is an Error? treats it
Misspelled word or typo (docter)One error per misspelled word
Compound written as two words (drop out rate for dropout rate)One error
Words in place of an acronym (Central Intelligence Agency for dictated CIA)Counted as errors (three in the guide's example)
Contraction written as two words (do not for don't)One error
Sound-alike spellings of names (Hardey Schmitt for Harley Schmidt)Not counted
Dictated words or phrases not in the dictionaryNot counted
Miss for dictated Ms.Not counted (but Mrs. is an error)

Core Spelling Rules

1. ie and ei

The rhyme "i before e except after c, or when sounded like ay" covers many words: believe, relief, receive, ceiling, deceit, neighbor, weigh. Memorize the exceptions instead of trusting the rule: seize, weird, either, neither, leisure, foreign, height, forfeit, and ie after c in words such as ancient, efficient, and conscience.

2. Silent Final e

  • Drop it before a suffix beginning with a vowel: argue → arguing, judge → judging, advise → advisable.
  • Keep it before a suffix beginning with a consonant: statement, hopeful, likely. Exceptions include argument, truly, ninth, and judgment (Merriam-Webster lists judgement as a variant).
  • Keep it after soft c or g before a or o: noticeable, manageable, courageous.

3. Final y

  • Consonant + y: change y to i before most suffixes (deny → denied, denies; liable → liability), but keep the y before -ing (denying, copying).
  • Vowel + y: usually keep the y (convey → conveyed, attorney → attorneys, employ → employer). A few common words are irregular (pay → paid, day → daily).

4. Doubling a Final Consonant

  • One-syllable words ending in a single vowel plus a single consonant double the consonant before a vowel suffix: plan → planned, stop → stopped.
  • Longer words double only when the stress falls on the last syllable: occur → occurred, occurrence; refer → referred; admit → admitted; commit → committed.
  • No doubling when the stress is earlier: benefit → benefited, offer → offered, travel → traveled (American spelling).
  • No doubling before a consonant suffix: commitment, allotment.

5. Plurals

  • Add -es after s, sh, ch, x, and z: witnesses, bushes, matches, taxes.
  • Consonant + y becomes -ies (parties, liabilities); vowel + y just adds -s (attorneys, delays).
  • Some f/fe words change to -ves (knife → knives, half → halves), but many do not (chiefs, beliefs, proofs).
  • For hyphenated or open compounds, pluralize the main word: attorneys general, sisters-in-law, courts-martial.
  • Some Latin and Greek plurals are standard (criteria, phenomena); for others Merriam-Webster lists two plurals (memorandums or memoranda, appendixes or appendices). Choose one and stay consistent.

6. Frequently Misspelled Words in Legal Work

accommodate, acquitted, arraignment, cancellation, commitment, defendant, dependent, embarrass, harass, indictment, judgment, liaison, occurrence, privilege, receive, recommend, separate, subpoena, supersede, withheld


Word Relationships

TermDefinitionExamples
HomophonesWords that sound alike but differ in spelling and meaningcite / site / sight; council / counsel; principal / principle
HomonymsWords spelled and pronounced alike with different meanings (dictionaries also use the term loosely for homophones and homographs)bank (of a river / for money); strike (a juror / a match)
HomographsWords spelled alike that differ in meaning and often in pronunciationrecord (noun) / record (verb); object; present; lead
SynonymsWords with the same or nearly the same meaningbegin / commence; end / terminate; permit / allow
AntonymsWords with opposite meaningsadmissible / inadmissible; acquit / convict; affirm / reverse
AcronymsAbbreviations formed from initial letters and pronounced as a wordHIPAA, OSHA, NATO, CART
InitialismsAbbreviations whose letters are pronounced one by oneFBI, DUI, CPA, RPR
IdiomsFixed expressions whose meaning is not literalsmoking gun; on the fence; under the table

Homophones cause the most transcript errors because the steno outline, and often the CAT dictionary, cannot tell them apart without context (see Section 9.3).


Writing Acronyms and Initialisms

  1. Write what the speaker said. If a witness says "F-B-I," write FBI; if the witness says "Federal Bureau of Investigation," write it out. The skills-test guide counts swapping one form for the other as an error.
  2. Periods: Most styles write agency and professional abbreviations without periods (FBI, CPA, DUI). Check the dictionary and your style guide for forms such as U.S. and a.m./p.m.
  3. Plurals and possessives: Add s without an apostrophe for plurals (CPAs, MRIs, DUIs) and 's for possessives (the FBI's report).
  4. A or an: Choose the article by sound, not letter. Write an FBI agent and an MRI (the first sound is a vowel sound), but a HIPAA form and a NATO base.
  5. Build them into the dictionary: Add outlines for the acronyms and initialisms you expect in a case (for example, the parties' company names and the agencies involved) before the job.

Idioms That Are Often Misheard or Misspelled

Idioms are transcribed as spoken, but their standard spellings matter when you know which expression the speaker used:

CorrectCommon mistake
for all intents and purposes"for all intensive purposes"
toe the line"tow the line"
free rein"free reign"
sneak peek"sneak peak"
shoo-in"shoe-in"
moot point"mute point"
case in point"case and point"

If a speaker clearly uses a nonstandard version, the verbatim rule applies: record what was actually said rather than silently correcting it.

Test Your Knowledge

Under NCRA's What is an Error? grading guide for the skills tests, how is "high school drop out rate" scored when the dictation was "high school dropout rate"?

A
B
C
D
Test Your Knowledge

Which sentence spells every word correctly?

A
B
C
D
Test Your Knowledge

Which statement correctly labels HIPAA and FBI?

A
B
C
D