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predict

/prɪˈdɪkt/·verb

to say what will happen before it happens, based on reason or evidence
Fig. 1 — The board says storm at six while the window is still an unbroken blue.
01Definition

To predict is to commit to a fact before the world has produced it. The Latin is bare: prae, before, dicere, to say — said beforehand. What separates prediction from guessing is the reasoning underneath: theories predict, models predict, experience predicts, and each prediction is a stake that can be checked when the event arrives, which is why science treats a confirmed prediction as its sharpest kind of proof. We anticipate quietly, in our preparations; we predict out loud, where being wrong will show.

02In use
  • iNo model predicted how quickly the housing market would turn.
  • iiThe theory predicts a tiny orbital shift that later measurements confirmed.
  • iiiEconomists are asked to predict and then blamed for guessing.
03Collocations
  • predict the outcome
  • accurately predict
  • hard to predict
  • predict with confidence
  • a model predicts

Family prediction (noun) · predictable (adjective) · predictive (adjective) · predictor (noun)

04Relations

=forecast, anticipate, foresee, project, prophesy

≠recall, react

06TOEFL & IELTS

Stress the second syllable: pre-DICT. In Academic Writing the verb pairs with agents that reason — models, theories, data predict outcomes; for weather and numbers-driven statements, forecast is the more precise cousin. Watch the adjective's tone: calling a person or plot predictable is mild criticism, while predictive (predictive text, predictive models) is neutral and technical. 'Predict the future' is redundant in careful prose — prediction already points forward.

07Asked
What is the difference between predict and forecast?
Predict is the general verb for any reasoned claim about an unknown outcome; forecast is the data-driven specialist, projecting forward from measured trends — weather, sales, elections. You can predict but not forecast the ending of a film. When numbers and trend lines produce the statement, forecast is the sharper word; when a theory, instinct or model produces it, predict.
What are the noun and adjective forms of predict?
The noun is prediction — the claim itself: 'his prediction proved exact.' The family then splits three ways: predictable describes what is easy to predict, predictive describes what does the predicting (predictive models, predictive text), and a predictor is a variable or sign that foretells something — 'income is a strong predictor of health outcomes', a phrase worth stealing for essays.
Is calling someone predictable an insult?
Gently, yes — dictionaries flag the usage as 'often disapproving'. A predictable train service is praise; a predictable person or plot is boring, because for humans and stories we prize surprise. The neutral escape in writing is 'consistent' or 'reliable' for people you mean to compliment, keeping predictable for the shrug.
What is the difference between predictive and predictable?
Direction. Predictive things do the predicting: predictive text guesses your next word, predictive policing forecasts crime hotspots. Predictable things get predicted easily: a predictable result surprises no one. Swapping them reverses the meaning — a predictable model is a dull one, a predictive model is doing its job.
Where does the word predict come from?
Latin praedicere: prae, 'before', plus dicere, 'to say' — to say beforehand, exactly what the forecaster in the scene above risks by chalking the storm on the board while the sky is still clear. The same dicere gives English dictate, verdict and contradict, so a prediction is literally a saying that arrives early and waits to be judged.