SAT Vocabulary Words from the Digital SAT May 2026 Attempt

16th October, 2026 | Abhishek Malani | 07 Min Read
If you are searching for a reliable SAT vocab list for the Digital SAT, start with the words real test takers remember. This May 2026 list has 18 words reported from the Digital SAT, and most of them are the kind of precise, slightly formal vocabulary that shows up in Reading and Writing passages. Words like attenuated, entrenched and supplanting rarely appear in everyday chat, which is exactly why they trip students up.
Each word below comes with a plain-English meaning, a few synonyms and two example sentences. Read the examples aloud, because hearing a word in a sentence is the fastest way to learn how the SAT uses it.
Whether you call it an SAT word list, an SAT vocab list or simply SAT prep vocabulary, the goal is the same: learn high-frequency SAT words with meanings and examples, then review them in short daily sessions.
SAT Vocabulary Words May 2026 – Digital SAT words with meanings, synonyms, and examples.

Table of Contents

Why May's list is worth studying

The Digital SAT Reading and Writing section is split into two adaptive modules of 27 questions each. A good share of those questions test words in context: the passage gives you a blank or a bold word, and you pick the choice that fits the meaning and tone. Memorising a definition is not enough. You need to know which synonym fits this sentence, and that is why every word here is paired with usage examples.
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May 2026 SAT vocabulary words with meanings, synonyms and examples

Word Meaning Synonyms Examples
1.Proprietary
Owned by a person or company and legally restricted to its owner.
Patented, exclusive, private, branded

• The startup refused to share its proprietary algorithm with competitors.

• Proprietary formulas are guarded like family secrets.
2. Reliable
Consistently dependable and trustworthy.
Dependable, trustworthy, steady, consistent

• A reliable witness describes events without exaggerating.

• The old pickup truck was slow but wonderfully reliable.
3. Courteous
Polite, respectful and considerate toward others.
Polite, gracious, civil, well-mannered

• The courteous receptionist offered every visitor a glass of water.

• Even in a heated debate, she stayed courteous.
4. Diminution
A reduction in size, amount, intensity or importance.
Decrease, decline, reduction, lessening

• Rising prices caused a sharp diminution in the shop’s customers.

• The diminution of the river’s flow worried local farmers.
5. Obsolescence
The process of becoming outdated or no longer useful.
Outdatedness, decline, disuse, redundancy

• Rapid obsolescence means phones feel old within three years.

• The printing press hastened the obsolescence of hand-copied manuscripts.
6.Aggregation
The gathering of separate items into one whole.
Collection, accumulation, compilation, pooling

• The website’s aggregation of news stories saved readers hours.

• Aggregation of small donations funded the entire library.
7. Isolate
To separate something from others so it can be studied or contained.
Separate, detach, quarantine, set apart

• Scientists isolate a single variable to test their hypothesis.

• Doctors moved to isolate the patient to stop the spread.
8. Attenuated
Weakened, reduced or made less intense.
Weakened, diluted, faded, lessened

• By the time the sound reached the valley, it was attenuated and faint.

• The attenuated virus in the vaccine cannot cause serious illness.
9. Yielding
Giving way, producing a result, or being willing to concede.
Giving way, producing, conceding, flexible

• The orchard kept yielding bigger harvests each autumn.

• The yielding branch bent but did not snap in the storm.
10. Entrenched
Firmly established and very hard to change.
ingrained, deep-rooted, established, fixed

• Entrenched habits are tough to break overnight.

• The entrenched bureaucracy resisted every reform.
11. Indistinguishable
Impossible or very hard to tell apart.
Identical, alike, interchangeable, undifferentiated

• The twins were indistinguishable from across the room.

• The forged signature was indistinguishable from the original.
12. Intermittent
Occurring at irregular intervals; stopping and starting.
Sporadic, occasional, irregular, on-and-off

• Intermittent rain spoiled the outdoor concert.

• An intermittent signal made the video call freeze again and again.
13. Inverted
Reversed in position, order or direction.
Reversed, upside-down, flipped, turned around

• An inverted bowl served as a makeshift lid.

• The poem’s inverted word order gave it an old-fashioned feel.
14. Independent
Not controlled by or reliant on anyone else.
Self-reliant, autonomous, self-governing, free

• An independent review panel checked the company’s claims.

• She grew into an independent traveller who planned her own routes.
15. Supplanting
Replacing something or someone, often by taking its place.
Replacing, displacing, overtaking, ousting

• Streaming services are supplanting cable television in many homes.

• The young striker kept supplanting older players in the lineup.
16. Allocating
Distributing or assigning resources for a specific purpose.
Assigning, apportioning, distributing, earmarking

• The mayor is allocating extra funds to public transport.

• Allocating study time evenly across subjects prevented last-minute panic.
17. Substantiating
Backing up a claim with evidence or proof.
Proving, verifying, corroborating, validating

• She spent weeks substantiating her theory with field data.

• Substantiating a rumour takes more than a single anonymous post.
18. Transposing
Moving something to a new position or changing its order.
Swapping, rearranging, reversing, relocating

• Transposing two digits in the phone number sent the call to a stranger.

• The composer is transposing the melody into a lower key.
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Four word families hiding in May's list

Sorting words into families makes them stick, and it helps on test day when you spot a pattern in the answer choices.
  • Getting smaller or weaker: diminution, attenuated, obsolescence. All three describe something losing strength, size or usefulness.
  • Taking over or replacing: supplanting, transposing, inverted. Something changes position or takes another’s place.
  • Proof and trust: reliable, substantiating, independent. These words show up when a passage judges evidence or a source.
  • Ownership and sharing: proprietary, aggregation, allocating, isolate. Think of who owns something, who gets it and how it is divided.

Test-day trap: look-alike meanings

Two May words are easy to confuse. Diminution is a noun for the reduction itself, while attenuated is an adjective describing something already weakened. If a sentence needs a thing that has been weakened, choose attenuated; if it needs the act or amount of decline, choose diminution. Likewise, independent describes freedom from control, but indistinguishable describes sameness. The SAT loves offering one right word next to a near-miss.

Final word

Eighteen words will not rewrite your SAT score by themselves, but learning them well builds the habit that does: reading each sentence for context before choosing an answer. Pick six words to learn this week, write your own sentence for each, and come back for the rest. Keep going, and May’s list will feel like old friends by your next practice test.
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