deducir
verbCEFR B2
What does “deducir” mean in English?
1.to deduce, to infer
to deduce, to infer (deducir que — reach a logical conclusion from available evidence)
2.to deduce, to infer
to deduce, to infer (deducir de + evidence → que + indicative — logical conclusion from observation)
3.deduce, conclude — to reach a logical conclusion from evidence or reasoning; also: to deduct
deduce, conclude — to reach a logical conclusion from evidence or reasoning; also: to deduct (a financial amount)
Example sentences
De la caída en las ventas se deduce que la estrategia de marketing no ha tenido el efecto esperado.
From the drop in sales one can deduce that the marketing strategy has not had the expected effect.
Deduzco que no estás de acuerdo con el enfoque, aunque no lo hayas expresado directamente.
I deduce you don't agree with the approach, even though you haven't said so directly.
A partir de los testimonios recogidos, los investigadores deducen que el fenómeno es más extendido de lo que se creía.
From the testimonies gathered, the researchers deduce that the phenomenon is more widespread than previously believed.
How to use it
Deducir means 'to deduce' or 'to infer' — drawing a conclusion from evidence or observed behaviour. It is a reasoning verb: you deduce something from something else, expressed with the preposition de: 'De esto se deduce que…' / 'A partir de los datos se puede deducir que…'. The subordinate clause takes indicative (the speaker presents the deduction as a logical conclusion). Note the irregular first-person present: deduzco (not *deduco). Don't confuse with concluir (reach a conclusion) or inferir (draw an inference, more formal).
Common mistake
Deduzco is the irregular first-person: the -ucir pattern gives -uzco, not *-uco. Don't confuse deducir with the B1 suponer (suppose) — deducir implies active logical inference from evidence; suponer is a softer, more speculative supposition. Also: deducir de (infer FROM) — the preposition is de, not *de que or *que.