/əˈfeɪs/, /ɪˈfeɪs/

1. (transitive) To erase (as anything impressed or inscribed upon a surface); to render illegible or indiscernible.
   1. smazat
   2. vymazat
   3. zahladit
2. (transitive) To cause to disappear as if by rubbing out or striking out.
   vymazat

/i-/, /iˈfɛkt/, /ə-/, /ɪˈfɛkt/
(sound engineering) An alteration, or device for producing an alteration, in sound after it has been produced by an instrument.

1. efekt
2. účinek

/ɪˈfɛktɪvli/
In an efficient or effective manner; with powerful effect.

/ɪˈfɛmɪneɪt/, /ɪˈfɛmɪnət/
(often, derogatory, of a man or boy) Exhibiting behaviour or mannerisms considered typical of a woman; unmasculine.

/ɛˈfɛndi/
An educated or well-respected man in an eastern Mediterranean or Arab country; often used as a title of respect or courtesy in Turkey or a former Ottoman territory.

/ˈɛ.fə.ɹənt/, /ˈɛ.fɜː.ənt/
Carrying away from.

1. eferentní
2. odstředivý

/ˈef.ə.kə.si/, /ˈef.ɪ.kə.si/, /ˈɛf.ɪ.kə.si/, /[ˈef.ɪ.kə.sɪi]/
A degree of ability to produce a desired effect; effectiveness.

1. účinnost
2. efektivnost

/ɪˈfɪʃ.ən.si/, /ɪˈfɪʃ.ɪn.si/, /[ɪˈfɪʃn̩si]/

1. The extent to which time is well used for the intended task.
   efektivita
2. The extent to which a resource is used for the intended purpose.
   účinnost

/əˈfɪʃənt/, /ɪˈfɪʃənt/, /ᵻˈfiʃɪəɳʈ/

1. Making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of time or energy.
   efektivní
2. Expressing the proportion of consumed energy that was successfully used in a process; the ratio of useful output to total input.
   účinný

In an efficient manner.

1. efektivně
2. účinně

/ˈɛfət/, /ˈɛfɚt/
The work involved in performing an activity; exertion.

1. úsilí
2. snaha

/ɛft/
A newt, especially a smooth newt (Lissotriton vulgaris, syn. Triturus punctatus), of Europe.