Lewis Short
regnum (noun N) : rex
* Kingly government, royal authority, kingship, royalty (cf.: imperium, principatus): cum penes unum est omnium summa rerum, regem illum unum vocamus et regnum ejus rei publicae statum,Cic. Rep. 1, 26, 42: regique Thebano Creonti regnum stabilivit suum,Plaut. Am. 1, 1, 39: regno regem spoliare,Cic. Rep. 1, 42, 65: ob labefactandi regni timorem,id. ib. 2, 2: regni initium,id. ib. 2, 15, 28: neque potest ejusmodi res publica non regnum et esse et vocari,royalty,id. ib. 2, 23: regnum obtinere,Caes. B. G. 5, 54; cf.: regnum in suā civitate occupare,id. ib. 1, 3: regnum reciperare, Auct. B. Alex. 36; Caes. B. G. 4, 12; 5, 20; 5, 25: dum stabat regno incolumis regumque vigebat Consiliis,Verg. A. 2, 88: Tulli ignobile regnum,Hor. S. 1, 6, 9; id. C. 1, 12, 34: Alexander periculoso regno securam ac tutam vitam anteponens,Just. 39, 4, 3.
* In gen., dominion, sovereignty, rule, authority.
* Meton. (abstr. pro concreto), a kingdom: grates tibi ago, summe sol, quod conspicio in meo regno et his tectis P. Cornelium Scipionem,Cic. Rep. 6, 9, 9: ad fines regni sui,Caes. B. G. 5, 26; 5, 38: (flumen Mulucha) Jugurthae Bocchique regnum disjungebat,Sall. J. 92, 5: se patrio regno pulsos esse,Liv. 1, 40: (Aufidus) Qui regna Dauni praefluit Appuli,Hor. C. 4, 14, 26 al.: barbara regna,id. Ep. 2, 1, 253: regnum caelorum,Hier. adv. Jovin. 2, § 28; cf. Vulg. Matt. 13, 11 et saep.— Poet., of bees: cerea regna refingunt,Verg. G. 4, 202.
* Trop., rule, authority, power, influence: abuteris ad omnia atomorum regno et licentiā,Cic. N. D. 1, 23, 65: regnum voluptatis,id. Sen. 12, 41: sub regno tibi esse placet omnes animi partes et eas regi consilio?id. Rep. 1, 38, 60; Ov. M. 14, 20; Prop. 4 (5), 7, 50.
* Transf.
* Any place which one possesses, a territory, estate, possession: id, nisi hic in tuo regno essemus, non tulissem,i. e. on your own territories, on your own estate,Cic. de Or. 1, 10, 41; cf. id. Att. 14, 16, 1: post aliquot mea regna videns, mirabor aristas?fields,Verg. E. 1, 70; cf. id. G. 1, 124; 3, 476: regna videt pauper Nasamon errantia vento,his cottages,Luc. 9, 458 al.: haec regna, these realms, i. e. of the dead, Verg. A. 6, 417.
* Regna = reges, Stat. Th. 12, 380.
Charlton T. Lewis, Charles Short, A Latin Dictionary