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instruo (accusative singular instruon, plural instruoj, accusative plural instruojn)

  1. instruction, teaching

Derived terms[edit]



From in- (in, at, on) +‎ struō (pile up, arrange; construct).



īnstruō (present infinitive īnstruere, perfect active īnstrūxī, supine īnstrūctum); third conjugation

  1. I build in or into, insert; erect, construct.
  2. I arrange, organise or organize, plan; devise.
  3. I prepare (for), provide (for), make ready, set up, furnish, provide, equip, fit out, procure.
  4. I provide with information, teach, inform, instruct.
  5. (military) I draw up (in battle formation), array, set in order, form.


In Classical texts, the only passive forms for this verb are third-person singular and plural. The second-person singular perfect indicative active form īnstrūxistī is sometimes written as īnstrūxtī. Please note that there is a disagreement between whether or not there is a macron on the third and fourth principal parts and the subsequent verb forms from these (īnstruxī for īnstrūxī and īnstructum for īnstrūctum).

   Conjugation of instruo (third conjugation)
indicative singular plural
first second third first second third
active present īnstruō īnstruis īnstruit īnstruimus īnstruitis īnstruunt
imperfect īnstruēbam īnstruēbās īnstruēbat īnstruēbāmus īnstruēbātis īnstruēbant
future īnstruam īnstruēs īnstruet īnstruēmus īnstruētis īnstruent
perfect īnstrūxī īnstrūxistī īnstrūxit īnstrūximus īnstrūxistis īnstrūxērunt, īnstrūxēre
pluperfect īnstrūxeram īnstrūxerās īnstrūxerat īnstrūxerāmus īnstrūxerātis īnstrūxerant
future perfect īnstrūxerō īnstrūxeris īnstrūxerit īnstrūxerimus īnstrūxeritis īnstrūxerint
passive present īnstruor īnstrueris, īnstruere īnstruitur īnstruimur īnstruiminī īnstruuntur
imperfect īnstruēbar īnstruēbāris, īnstruēbāre īnstruēbātur īnstruēbāmur īnstruēbāminī īnstruēbantur
future īnstruar īnstruēris, īnstruēre īnstruētur īnstruēmur īnstruēminī īnstruentur
perfect īnstrūctus + present active indicative of sum
pluperfect īnstrūctus + imperfect active indicative of sum
future perfect īnstrūctus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present īnstruam īnstruās īnstruat īnstruāmus īnstruātis īnstruant
imperfect īnstruerem īnstruerēs īnstrueret īnstruerēmus īnstruerētis īnstruerent
perfect īnstrūxerim īnstrūxerīs īnstrūxerit īnstrūxerimus īnstrūxeritis īnstrūxerint
pluperfect īnstrūxissem īnstrūxissēs īnstrūxisset īnstrūxissēmus īnstrūxissētis īnstrūxissent
passive present īnstruar īnstruāris, īnstruāre īnstruātur īnstruāmur īnstruāminī īnstruantur
imperfect īnstruerer īnstruerēris, īnstruerēre īnstruerētur īnstruerēmur īnstruerēminī īnstruerentur
perfect īnstrūctus + present active subjunctive of sum
pluperfect īnstrūctus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present īnstrue īnstruite
future īnstruitō īnstruitō īnstruitōte īnstruuntō
passive present īnstruere īnstruiminī
future īnstruitor īnstruitor īnstruuntor
non-finite forms active passive
present perfect future present perfect future
infinitives īnstruere īnstrūxisse īnstrūctūrus esse īnstruī īnstrūctus esse īnstrūctum īrī
participles īnstruēns īnstrūctūrus īnstrūctus īnstruendus
verbal nouns gerund supine
nominative genitive dative/ablative accusative accusative ablative
īnstruere īnstruendī īnstruendō īnstruendum īnstrūctum īnstrūctū

Derived terms[edit]

Related terms[edit]



  • instruo in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • instruo in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • instruo in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • to waylay a person: insidias alicui parare, facere, struere, instruere, tendere
    • to prepare, give a feast, dinner: convivium instruere, apparare, ornare (magnifice, splendide)
    • to load the tables with the most exquisite viands: mensas exquisitissimis epulis instruere (Tusc. 5. 21. 62)
    • to draw up forces in battle-order: aciem (copias, exercitum) instruere or in acie constituere
    • to draw up the army in three lines: aciem triplicem instruere (B. G. 1. 24)
    • to equip a boat, a fleet: navem (classem) armare, ornare, instruere




  1. first-person singular present indicative of instruir