7. Efficient (adj): /ɪˈfɪʃənt/ Eficiente
Something that works well and produces good results.
Example: The new machine is far more efficient than the old one.

8. Eloquent (adj): /ˈɛləkwənt/ Elocuente
Expressing what you mean using clear and effective language.
Example: Joshua gave an eloquent speech.

9. Even (adv): /ˈivɪn/ Incluso
Used for showing that you are saying something that is surprising.
Example: This room is always cold in winter, even in summer.

10. Frightful (adj): /ˈfraɪtfəl/ Aterrador
Informal old-fashioned extremely unpleasant.
Example: Emma’s make up was so frightful.