Any tiny hole admitting passage of a liquid (fluid or gas).

Roget 260: hole, foramen; puncture, perforation; fontanel^†; transforation^†; pinhole, keyhole, loophole, porthole, peephole, mousehole, pigeonhole; eye of a needle; eyelet; slot.    opening; aperture, apertness^†; hiation^†, yawning, oscitancy^†, dehiscence, patefaction^†, pandiculation^†; chasm etc. (interval) 198.    embrasure, window, casement; abatjour^†; light; sky light, fan light; lattice; bay window, bow window; oriel [Arch.]; dormer, lantern.    outlet, inlet; vent, vomitory; embouchure; orifice, mouth, sucker, muzzle, throat, gullet, weasand^†, wizen, nozzle; placket.    portal, porch, gate, ostiary^†, postern, wicket, trapdoor, hatch, door; arcade; cellarway^†, driveway, gateway, doorway, hatchway, gangway; lich gate^†.    way, path etc. 627; thoroughfare; channel; passage, passageway; tube, pipe; water pipe etc. 350; air pipe etc. 351; vessel, tubule, canal, gut, fistula; adjutage^†, ajutage^†; ostium^†; smokestack; chimney, flue, tap, funnel, gully, tunnel, main; mine, pit, adit^†, shaft; gallery.    alley, aisle, glade, vista.    bore, caliber; pore; blind orifice; fulgurite^†, thundertube^†.    porousness, porosity.    sieve, cullender^†, colander; cribble^†, riddle, screen; honeycomb.    apertion^†, perforation; piercing etc. v.; terebration^†, empalement^†, pertusion^†, puncture, acupuncture, penetration.    key etc. 631, opener, master key, password, combination, passe-partout.    ... show more

Roget 295: egress, exit, issue; emersion, emergence; outbreak, outburst; eruption, proruption^†; emanation; egression; evacuation; exudation, transudation; extravasation [Med.], perspiration, sweating, leakage, percolation, distillation, oozing; gush etc. (water in motion) 348; outpour, outpouring; effluence, effusion; effluxion^†, drain; dribbling etc. v.; defluxion^†; drainage; outcome, output; discharge etc. (excretion) 299.    export, expatriation; emigration, remigration^†; debouch, debouche; emunctory^†; exodus etc. (departure) 293; emigrant.    outlet, vent, spout, tap, sluice, floodgate; pore; vomitory, outgate^†, sally port; way out; mouth, door etc. (opening) 260; path etc. (way) 627; conduit etc. 350; airpipe etc. 351^†.    ... show more

Roget 350: conduit, channel, duct, watercourse, race; head race, tail race; abito^†, aboideau^†, aboiteau [Fr.], bito^†; acequia^†, acequiador^†, acequiamadre^†; arroyo; adit^†, aqueduct, canal, trough, gutter, pantile; flume, ingate^†, runner; lock-weir, tedge^†; vena^†; dike, main, gully, moat, ditch, drain, sewer, culvert, cloaca, sough, kennel, siphon; piscina^†; pipe etc. (tube) 260; funnel; tunnel etc. (passage) 627; water pipe, waste pipe; emunctory^†, gully hole, artery, aorta, pore, spout, scupper; adjutage^†, ajutage^†; hose; gargoyle; gurgoyle^†; penstock, weir; flood gate, water gate; sluice, lock, valve; rose; waterworks.    pipeline.    ... show more

Any small opening in the skin or outer surface of an animal.

Dutch: porie
Polish: por

A minute epidermal pore in a leaf or stem through which gases and water vapor can pass.

synonyms: stoma, stomate.

Polish: por

Direct one's attention on something.

synonyms: center, centre, concentrate, focus, rivet.

Dutch: concentreren, richten