preliminary
Happening before the main or final stage.
ExampleThe preliminary results suggest that the new method may be more accurate.
ExampleThe passage warns that preliminary findings need further testing.
Usage Scenarios
Reading a research timeline
Recognize preliminary when the passage separates early findings from later confirmation.
ExamplePreliminary observations suggested a link, but subsequent studies tested it more carefully.
Evaluating evidence strength
Notice whether the author uses preliminary to limit a claim and avoid overstatement.
ExampleThe preliminary evidence supports the hypothesis, but the sample is small.
Usage Guide
Recognize preliminary when a TOEFL passage describes information gathered before the main study, final report, or complete conclusion. It often signals caution because the evidence is early.
High-value chunks include preliminary results, preliminary findings, preliminary research, and preliminary evidence. These phrases mean the information is useful but not final.
Do not read preliminary as conclusive. A preliminary result may guide later research, but it should not be treated as the final answer.
Word Forms & Word Building
Preliminary is built with the prefix pre-, meaning before, which gives the word its early-stage meaning.
Preliminaries is the plural noun for things done before the main action, though TOEFL usually uses preliminary as an adjective.
Build the research phrase preliminary + noun: preliminary results, preliminary findings, preliminary survey, preliminary analysis.
Meaning Boundaries
Preliminary vs final
Final means complete or decisive. Preliminary means early and subject to later testing or revision.
Preliminary vs previous
Previous simply means earlier. Preliminary means earlier in preparation for a main stage.
Register
Preliminary is formal and common in TOEFL research passages, lecture summaries, and scientific reporting.
Memory Tricks
Think before final. Preliminary information comes early and should be handled cautiously.
Pair it with results and findings because TOEFL academic passages often stage evidence this way.
When reading, look for later confirmation, revision, or contradiction after preliminary evidence appears.
Common Traps
Do not treat preliminary results as proven conclusions.
Do not use preliminary for any old event; it should prepare for or come before a main stage.
If a passage contrasts preliminary with subsequent, track the timeline carefully.