7. Dull (adj): /dʌl/ Aburrido
Boring, or not interesting.
Example: The nighlife in this city is dull.

8. Focus (v): /ˈfəʊkəs/ Concentrar
To concentrate on something and pay particular attention to it.
Example: He is trying to focus on his studies first.

9. Heckler (n): /ˈhek(ə)l (r)/ Objetante
Someone who interrupts a speaker at a public meeting by shouting remarks.
Example: Mr Thompson could not put up with the hecklers at the conference.

10. Knowledge (n): /ˈnɒlɪdʒ/ Conocimiento
All the facts that someone knows about a particular subject.
Example: The knowledge they have is thanks to all the books they have read.

11. Misfortune (n): /mɪsˈfɔː(r)tʃ(ə)n/ Desgracia
Bad luck.
Example: Anabel has the misfortune to see them leave.

12. Performance (n): /pə(r)ˈfɔː(r)məns/ Acto
The act of performing a play, dance, or other form of entertainment.
Example: His first performance was just amazing.

13. Potential (adj): /pəˈtenʃ(ə)l/ Potencial
Possible or likely in the future.
Example: We are afraid of the potential disaster.

14. Public speaking (n): /ˈpʌblɪk/ /spiːktɪŋ/ Hablar en público
The activity of speaking formally to large groups of people.
Example: I think public speaking is not for me.