open (v.) Copy link Outline A. Trans.I. To unclose1. ăpĕrio, ui, rtum, 42. pătĕfăcio, fēci, factum, 3 (to set open)3. reclūdo, si, sum, 3 (chiefly poet.)4. rĕsĕro, 1 (to remove a bar5. pando, di, pansum and ssum, 3 (to spread out, open wide)II. In medicine, to make an incision intoIII. To make a road or passage by removing obstructionsIV. To inaugurate, beginV. To uncover, make knownVI. To explainVII. In medicineB. Intrans.1. expr. by ăpĕrio, 4 (with pron. refl.)2. pătesco, 3 (to spread out wide)3. hisco, 3 (to gape open) • open (v.): A. Trans.: I. To unclose: 1. ăpĕrio, ui, rtum, 4: to o. a door, a. ostium, Ter. Ad. 4, 4, 26: to o. a letter, epistolam s. litteras a., Cic. Att. 5, 11, fin.: ib. 11, 9: to o. the eyes, oculos a., id. Mil. 31, 85. 2. pătĕfăcio, fēci, factum, 3 (to set open): to o. the gates to the enemy, hostibus portas p., Liv. 2, 15, med.: to o. the eyes (of the dead) on the pyre (set them wide open), oculos in rogo p., Plin. 11, 37, 55. Fig. to o. the ears to flatterers, assentatoribus aures p., Cic. Off. 1, 26, 91. 3. reclūdo, si, sum, 3 (chiefly poet.): to o. a gate, portam r., Virg. Aen. 7, 617: Lucr. Ov. to o. one's house, domum r., Hor. Ep. 2, 1, 103. 4. rĕsĕro, 1 (to remove a bar: also chiefly poet.): Virg.: Ov. Join: reserare urbem et pandere portas, Virg. Aen. 12, 584. 5. pando, di, pansum and ssum, 3 (to spread out, open wide): the gates are o.'d (spread wide open), panduntur portae, Virg. Aen. 2, 27. Phr.: to o. a letter (besides aperire, v. supr. 1), litteras resignare (to unseal), solvere, Cic. Att. 11, 9; resolvere, Liv. 26, 15, med.: also, vincula epistolae laxare signumque detrahere, Nep. Paus. 4, init.; vinculum epistolae solvere, Curt. 7, 2, med. (but these phrr. should not be used unless the act of opening be expressly dwelt upon): cf. linum incidere (to cut the thread with which a letter was tied), Cic. Cat. 3, 5, 10. to o. a jar (by removing the pitch with which it was fastened), dolium relinere, Ter. Heaut. 3, 1, 51 (R. and A.): to o. one's mouth (i. e. to speak), hiscere, Cic. Ph. 2, 43, 111. (N.B.--To o. a book is, aperire librum librum evolvere is to read a book, by unrolling the scroll: cf. Cic. Tusc. 1, 11, 24, evolve diligenter eum librum qui est de animo: Quint. 2, 15, 24, etc. so, evolvere volumina epistolarum, to read through, examine volumes of letters, Cic. Att. 9, 10, med.) II. In medicine, to make an incision into: ăpĕrio, 4; incīdo, 3 Cels. 7, 2, etc. III. To make a road or passage by removing obstructions: Phr.: to o. a passage with the sword, ferro iter aperire, Sall. Cat. 58, med.: to o. a passage through the Alps, iter per Alpes patefacere, Caes. B. G. 3, 1: to o. (clear) approaches to a place, aditus expedire, ib. 7, 86: to o. a way to any one to be sovereign (i. e. entitle him to be so), alicui ad dominationem pandere viam, Liv. 4, 15, med. IV. To inaugurate, begin: Phr.: to o. a place of worship, ecclesiam, aedem consecrare, dedicare (v. to dedicate, consecrate): to o. a hall or theatre, perh. atrium s. theatrum inaugurare (v. to inaugurate): to o. a case (in pleading), causam exordiri, Quint. 4, 1, 2: cf. ingredi in causam, Cic. Pl. 3, 8 (v. to begin) to o. a ball, *primam choream ducere, R. and A. (Plin. min. has, aperire annum, to o. the year, Pan. 58.) V. To uncover, make known: rĕtĕgo, ăpĕrio (cf. Sall. Cat. 40, conjurationem aperit), dētĕgo, etc.: v. to reveal, unfold. VI. To explain: explĭco, interprĕtor: v. to interpret, explain. VII. In medicine: Phr.: to o. the bowels, alvum dejicere, Cato R. R. 148: Cels. B. Intrans.: 1. expr. by ăpĕrio, 4 (with pron. refl.): all at once the doors o.'d of themselves, valvae subito se ipsae aperuerunt, Cic. Div. 1, 34, 74. So with pando (to spread open): the rose o.s, pandit sese rosa, Plin. 21, 4, 10 § 14. 2. pătesco, 3 (to spread out wide): the long halls o. (to view), atria longa p., Virg. Aen. 2, 483: v. TO SPREAD OUT. 3. hisco, 3 (to gape open): hush! the door o.s! tace! aedes h.! Pl. Ps. 4, 1, 51 (a use hardly to be imitated): the earth o.s, h. terra, Ov.: v. TO GAPE OPEN. So comp. dĕhisco, 3 (strictly, downwards): to o. in fissures (of a boat), rimis d., Ov. Tr. 5, 12, 27: and of flowers opening, Plin. 21, 4, 10 § 14 (dehiscere ac sese pandere: also simply, dehiscere, ib. § 18). Phr.: to o. outwards (of doors), aperturas habere in exteriores partes, Vitr. 4, 6, fin.: to o. again (of wounds partially healed), recrudescere, Cic. Fam. 4, 6 (fig.): to o. in fissures, rimis fatiscere, Virg. Aen. 1, 123: the new year o.s with cold weather, frigoribus novus incipit annus, Ov. F. 1, 149 (v. to begin).