fraternity: (brotherliness) frat-eso; (society) kun-frat-aro, soci-eto.
fraternize: frat-eskar (kun).
fratricide: frat-ocid-o, (person) -anto, -into; -dal: -anta.
fraud: (act) fraud-(ad)o (cf. dolo; trompo); (person) (defrauder) fraud-anto, -ero; -ulent: -a, -oza.
fraught: charj-ita.
fray: kombato, konflikto, batalio.
fray out: franj-igar, -eskar; lacerar.
freak: kaprico; (of nature) fantazi-o, -ajo natur-ala; persono deform-ita; monstro; -ish: kapric-oza, -ema.
freckle: lentigin-o, (v.) -igar, -eskar; -d: -oza.
free: liber-igar, -eskar; des-inkombrar, des-intrikar.
free: (adj.) liber-a, (person) -o, -ulo, -ino (cf. prefix sen-; quita; gratuita, sen-paga; afrank-ita; sen-imposta, imuna); f. will: arbitrio; f. trade: libera kambio; f. thinker: libera pens-ero.
freebooter: pirato; marod-ero, -isto.
freeborn: libere nask-inta.
freedom: liber-eso.
freehold: libera (od, imuna) tereno (od, domeno), od, posed-ajo.
freemason: framasono.
freestone: (cut rock) quadro.
freeze: (intr.) frost-ar; (tr.) -igar; (become, make ice) glaci-eskar, -igar; (solidify) (tr., intr.) konjelar; solid-eskar, -igar; a hard f.: forta frosto; a f.ing rain: frosto-pluvo.
freight: (charter) fretar; (lade) charjar; (n.) karg-ajo; f. cost: freto-pago, -preco; f. car: (covered) var-vagono; (open) truko.
French: Franca.
frenzied: frenezi-oza, -ema; delir-anta, -ema, -atra.
frenzy: frenezi-o; a fit of f.: aceso di -o.
frequent: frequentar; (adj.) frequa, ofta; (road, etc.) frequent-ata, -ita.
fresco: fresk-o; to f.: freske piktar.
fresh: (recently made, etc.) fresha; (new) nova; recenta; (pure) pura; (not salt) sen-sala; -en: (plu-, ri-) fresh-igar, -eskar; (wind) fort-eskar; to destroy the f.ness of: des-fresh-igar.
fret: (as the skin) exkoriar, lacerar; (phys. and fig.) iritar; (mental) des-quiet-igar, -eskar; molestar; despitar.
fretful: plend-ema; irit-ebla; irac-ema.
friable: friabla.
friar: monak-(ul)o.
fricasйe: frikas-ar; -ajo.
friction: (rubbing) friciono; (discord) des-konkordo.
Friday: venerdi-o; Good F.: -o santa.
friend: amik-(ul)o; to become a f.: -eskar; -liness: -eso; -ly: -a, -ala; f.ly act: amik-al-ajo, -ala ago.
frieze: (arch) friso; (fabric) burelo.
frigate: fregat-o; f. bird: -ucelo.
fright: (subita) pavor-o (cf. teroro, alarmo, paniko, hororo); (fig.) led-(ul)o, -ajo; take f.: pavor-eskar.
frighten: pavor-igar, teror-igar; to be f.ed: terorar (intr.).
frightful: teror-ig-anta, -iva; horor-inda; (fig.) led-ega; abomin-inda.
frigid: kold-(eg)a; glaci-ala (zone, look); (of women, lacking sexual desire) frigida*; -ity: kold-(eg)eso.
frigorific: frigor-if-anta, -iva.
frill: jaboto; falbalo; plis-uro.
fringe: (border of loose threads) franjo; franjo-buli; (edging) paspelo; (border) bord-o, -umo; to put on f.: franj-izar; to f.: (fray out) -igar, -eskar.
frippery: (old clothes, etc.) frip-aji, -aj-aro.
frisk: (wriggle) friskar (intr.), salt-etar; (intr.) petular; (romp) (intr.) gambolar; -y: petul-oza, -ema; frisk-ema; gaya.
fritillaria: fritilario.
fritter: frit-ajo; f. away: disipar.
frivolity: (quality) frivol-eso, (act) -ajo.
frivolous: frivol-a; (person) -(ul)o.
frizzle: (tr., intr.) friz-ar; -ajo, -loklo.
fro, to go to and: irar e venar; irar de una latero a l’altra.
frock: (robe) robo (cf. vesto); (blouse) bluzo; (monk’s ) froko; f. coat: redingoto.
frog: (animal) rano; (for garment) frogo.
frolic: (intr.) fol-lud-etar; gambolar; petular; -some: fol-lud-ema; joy-oza; (prank) yun-es-ala stroko.
from: de; (according to) segun; (on account of) pro; (= out, with motion) ek (as: adportez la stulo ek la chambro); (indicating material) ek (as: vazo ek oro); f. when: de kande; f. that time: de pose, de lore;f. now henceforth: de nun; f. under: de-sub; f. behind: de-dop; to take f.: de-prenar; die f. hunger: mortar pro hungro; blind f. birth: blinda de nasko; f. what you say: segun to quon vu dicas.