Recognizing analogies and relationships between words

An analogy is not solved by noticing that two words are vaguely associated. The pair must have a relationship that can be stated clearly and then reproduced in the second pair. Naming the relationship before looking at choices reduces guesswork.

State the relationship as a sentence

For “thermometer is to temperature,” a useful sentence is “a thermometer measures temperature.” For “seed is to plant,” the relationship may be “a seed can develop into a plant.” A broad label such as “things in science” is too vague to distinguish a correct answer from a distractor.

Common relationship patterns

• Part to whole: page is to book.
• Tool to function: compass is to direction-finding.
• Cause to effect: drought is to crop loss.
• Category to example: fruit is to pear.
• Degree or intensity: cool is to cold.
• Worker to workplace or product: baker is to bakery or bread, depending on the pair.

Keep direction and grammar consistent

If the first pair moves from tool to function, the second pair should do the same—not function to tool. Check whether the words have the same grammatical roles and whether the relationship works in both directions. A tempting option may contain related words but reverse the sequence or substitute cause for effect.

A five-step method

1. Read the first pair aloud as a sentence.
2. Name the relationship specifically.
3. Note the direction of the relationship.
4. Apply the same sentence to each answer pair.
5. Eliminate choices that are only associated, not structurally parallel.

Choose the relationship type precisely

Common analogy relationships include part to whole, member to category, tool to function, worker to product, cause to effect, sequence, degree, and synonym or antonym. More precise wording makes elimination easier. “A thermometer measures temperature” expresses a function; “temperature is related to a thermometer” is too broad. For “chapter : book,” the first item is a part of the second, so an answer with a book and a chapter reversed does not match the direction.

Keep direction and role consistent

Analogies often test order. If a seed develops into a plant, the relationship moves from earlier stage to later result. A plant is not to seed in the same direction. Ask whether the first word is the cause, tool, part, category, or earlier item, and retain that role in the answer. Also check grammar: if the first pair connects two nouns through an action, the second pair should allow the same sentence structure.

Test an answer in both directions

State a sentence that connects the first pair, then replace the nouns with each candidate pair. For “author : novel,” possible relationships include creator to work. “Composer : symphony” fits that relation; “reader : library” does not, even though both words are associated with books. If a choice seems plausible under a different relationship, reject it unless it reproduces the relationship actually present in the original pair.

Watch for common traps

• Broad association: two words belong to the same subject area but have no matching structural relation.
• Reversal: the answer contains the same roles in the opposite order.
• Category mismatch: one pair is a type-of relation while the other is a part-of relation.
• Degree mismatch: one pair compares intensity while the other describes cause and effect.
• Multiple possible links: a vague analogy can invite several answers, so use the most specific defensible relation and test the options consistently.

A worked method

For “thermometer : temperature :: compass : ?,” say “a thermometer measures temperature.” Apply the same sentence: “a compass measures direction.” The relationship and direction remain intact. For “drought : crop loss :: fire : ?,” a plausible structure is cause to possible effect, but a specific answer still needs to fit the context; smoke may be an effect, while water is not the same kind of relationship. Analogies reward a precise relational sentence more than a loose word association.

Use elimination without guessing

1. Write the original pair as a short sentence.
2. Name the exact relation, including direction and category.
3. Test each answer choice with the same sentence frame.
4. Remove choices that only share a topic or reverse the roles.
5. Confirm that the remaining pair fits both words, not just one of them.

Key takeaway

An analogy tests relationship, direction and precision. Make the first pair's connection explicit, then choose the pair that follows the same pattern.

Identify the relationship before choosing a pair

An analogy compares two pairs of words that share a relationship: A is to B as C is to D. First describe the relationship in the given pair in a short phrase, then test that same phrase on the answer choices. For “seed is to plant,” the relationship may be an early stage developing into a mature form. A choice such as “egg is to bird” follows a similar developmental relation.

Common relationships include part to whole, tool to function, cause to effect, worker to workplace, synonym, antonym, category to example, and degree. “Key is to lock” describes tool to function; “spark is to fire” may describe a small cause that can produce a larger result. The exact relation depends on context, so state it precisely.

Keep the direction of the relationship

Reversing the order often changes the relationship. “Author is to book” is creator to product; “book is to author” is product to creator. An answer can contain the same two concepts but be wrong if it reverses the order. Check both the type of relationship and which term comes first.

Some pairs support more than one possible connection. “Doctor is to hospital” could be worker to workplace, but a doctor may also work elsewhere. Choose the option that matches the intended relation most specifically and consistently. Avoid a vague description such as “things associated with each other.”

Use context and grammar to narrow choices

Word class can signal a relation: a verb may pair with its object, an adjective with a quality, or a noun with a category. If an analogy includes a multiple-meaning word, use the sentence or domain context to decide which sense applies. A technically plausible pair may be incorrect if it uses a different sense.

For difficult items, write “A relates to B as ___ relates to ___” and fill in each choice. Read the complete sentence aloud and reject pairs that require a different relationship halfway through. This structured test is more reliable than selecting the most familiar word association.

• Describe the first pair’s relationship in specific terms.
• Keep the direction and order of the relationship.
• Test the same relation on both terms in each choice.
• Use word class and context to resolve multiple meanings.
• Avoid broad associations that fit many unrelated pairs.