obligation: (matter of conscience, law) oblig-eso; devo; (bond, debenture) obligaciono; (debt) deb-o, -ajo (cf. devar, koaktar).
obligatory: (incumbent) oblig-ata.
oblige: (constrain by duty, honour) obligar (ulu ad ulo); devar; (constrain, compel) koaktar; (render a service to) servar (ulu) komplezar (ad ulu), facar servo o komplezo (ad ulu); I am much o.ed to you: me multe gratitudas vu, me debas multo a vu; I am not o.ed to help you: me ne devas servar vu; o. me with: voluntez donar ad me (ulo).
obliging: komplez-anta, -ema; serv-ema.
oblique: obliqua.
obliterate: (erase) efacar; (cancel) obliterar (cf. destruktar, domajar).
oblivion: (state of being forgotten) oblivi-eso; (unconsciousness) ne-sent-iv-eso; sen-konci-eso.
oblivious: oblivi-inta, -ema; sen-koncia.
oblong: oblonga.
obloquy: blamo, reprocho; des-honoro, shamo.
obnoxious: (hurtful) danjer-oza, noc-iva; (odious) odi-inda, des-agreabla, ofens-anta, -iva, -ema; (reprehensible) blam-inda, reprimand-inda, (liable) expozita (ad).
oboe: hoboyo.
obolus: obolo.
obscene: obcena (cf. grosiera, sham-inda, sen-pudora).
obscenity: (quality) obcen-eso; (thing, act) -ajo.
obscurantism: obskurant-ismo.
obscurantist: obskurant-isto.
obscure: (pr. and fig.) obskur-igar, -eskar; (adj.) -a; -rity: -eso.
obsequies: funero, funer-ala ceremonio.
obsequious: komplez-ach-ema; -ness: komplez-acho, respekt-acho.
observable: observ-ebla; (appreciable) evalu-ebla.
observance: (fulfilment) plen-igo; (obedience) obedi-(ad)o; (practice) praktik-(ad)o; (ceremony) ceremonio (cf. festo).
observant: observ-ema; atenc-ema.
observation: (of an object) observo, remarko; (remark) enunc-ajo, kelka vorti (od, paroli); (of a holiday) fest-(ad)o.
observatory: (in gen.) observ-eyo; (scientific) observatorio.
observe: (see) observar (cf. remarkar, vidar); (fulfil) plen-igar; (obey, follow) obediar; sequar; (say) dicar; (celebrate) festar, celebrar.
obsess: obsedar.
obsidian: obsidiano.
obsolescence: obsolet-esko.
obsolete: obsoleta.
obstacle: obstaklo.
obstetric(al): akush-ala; -s: obstetriko (2001); akush-arto.
obstinacy: obstin-(ad)o.
obstinate: obstin-anta, -ema; (person) -ema; to be o.: (intr.) -ar.
obstreporous: petul-ema; bruis-anta, -ema; tumult-oza.
obstruct: obstruktar (cf. inkombrar, impedar, embarasar); -ion: -(ad)o, -eso; -ive: -iva.
obtain: (get) obtenar; (prevail) pre-valorar, existar; regnar.
obtrude: (intrude) intruzar; (impose) impozar (ulo ad ulu).
obtrusive: intruz-anta, -ema; impoz-anta, ted-anta.
obturate: obturar.
obtuse: (lit. and fig.) obtuza; (sound) ne-sonora, matida.
obverse: (front side) averso.
obviate: preventar, evitar, impedar (ulo).
obvious: evidenta; sent-ebla.
ocarina: okarino.
occasion: efekt-igar, produktar, determinar.
occasion: (opportunity) okaziono; (cause) kauzo; (need) bezono; (necessity) neces-eso; -al: kelka-foya, intermit-anta; okazion-ala; -ally: kelka-foye, ul-foye, de tempo a tempo, okazione.
occident: westo; ocidento; -al: ocident-ala, west-ala; (person) ocident-ano.
occiput: ocipito.
occult: okulta (cf. arkana); -ism: -ismo.
occultation: eklipso.
occupant: okup-anto, -ero.
occupation: (act) okup(ad)o, (fact of being occupied) okup-eso; (that which occupies) okup-antajo, -ivo; labor(ad)o, tasko, mestiero, ofico.
occupy: okupar.
occur: (happen) (intr.) eventar; (to the mind) venar en mento, en pensado.
occurrence: event-o, -ajo (cf. renkontro, hazardo, cirkonstanco).
ocean: (also fig.) ocean-o (cf. maro); -ic: -ala; oceanography: oceanografio.
ocelot: oceloto.
ochre: okro.
o’clock: kloko (e.g., kin kloki).
octagon: oktogon-o; -al: -a, -ala, -atra.
octahedron: oktaedro.
octant: oktanto.
octave: oktavo.
octillion: oktiliono.
October: oktobro.
octogenerian: oka-dek-yar-a, -o.
octopod(a): oktopodo.
octopus: polpo.
octuple: ok-oplo, -opla.
ocular: okul-ala.
oculist: okul-isto.
odalisque: odalisko.
