The SAT vocabulary map

Why a map is worth more than a list here

A definition tells you what a word means. It does not tell you which other words it is going to be sitting next to in four answer choices, and that is the thing Words in Context questions are actually built out of. Roughly 7 of the 54 Reading and Writing questions turn on picking the most precise word among four that are all defensible in the abstract, and most wrong answers on that skill are a word pointing in the wrong direction rather than a word with the wrong meaning.

Direction is a shape, not a sentence. Seeing obstinate pulled tight against stubborn and dogged, with a red line running off to compliant, gets a student to the same place faster than three definitions do, and it makes the cluster memorable in a way a row of the alphabet never is.

How to read it

Every dot is one word, and it is coloured by its part of speech. The bigger a dot is, the more words it connects to, so the large ones are the hubs of a meaning that the SAT keeps circling: precision, stubbornness, praise, restraint.

A pale line means the two words mean something similar. A red line means they are opposites. Lines come in two weights, and the difference is worth knowing. A bright line is a claim the word bank makes outright: one entry lists the other by name. There are 169 of those for similarity and 45 for opposition. A faint line is an inference: the two entries never name each other, but they both list the same third word, so they are plainly neighbours. That is where most of the map comes from, 640 faint similar lines and 434 faint opposites.

638 of the 701 words land somewhere in the web. The remaining 63 sit on the ring around the outside: their synonyms are all ordinary words that no other SAT entry happens to use, so the bank gives them nothing to hold on to. They are not lesser words, they are just the ones this particular corpus cannot triangulate.

Using it for ten minutes at a time

Pick a word you half-know, not one you have never seen. Half-known words are the ones the test beats you with, because you feel confident enough to pick them and are wrong about which sense is in play. Open it on the map, read the definition and the example, then walk one step out to each word it connects to and check whether you could tell them apart in a sentence. If you cannot, that pair is worth writing down. Four or five clusters is a session.

And keep the ceiling in mind. Vocabulary is about 14 percent of Reading and Writing and none of Math. It is a cheap, fast-returning slice of the test, and it is a slice.