presenter Iconspeaker_3
[de pre-sen-ta-tor, de pre-sen-ta-tors / de pre-sen-ta-to-ren]

Willemruis In general a "presentator" (or "presentatrice" when female) is somebody who presents something. However, we mostly use it for radio or tv shows. When you give a lecture/presentation or are a speaker at a conference, we say "spreker". Somebody who introduces all speakers could be a "presentator" but can also be referred to as "gastheer" or "gastvrouw" ('host/hostess').

The related verb is "presenteren" ('to present'). A presentation is a "presentatie".

– "Ik vind het een leuk programma, maar die presentator trek ik voor geen meter." 
("I like the show, but the presenter annoys me enormously." Lit.:"I think the show is nice, but…" Note the expressions "het niet trekken" (not being able to stand it, to not last long) and "voor geen meter" (not at all). )

– "De presentator van de middagsessie was bijna niet te verstaan. Gelukkig waren de sprekers wel goed." 
("The host of the afternoon session could hardly be heard. Luckily the speakers (themselves) were good." Here we use "wel" to emphasize that they were good as opposed to the host who was not.)

– "Een bekende Nederlandse tv-presentator uit de jaren tachtig is Willem Ruis." 
("A well-known Dutch TV host from the eighties is Willem Ruis.")

Related words:
– Presenteren: to present [verb] [presenteerde, gepresenteerd].
– Presentatie: presentation [noun] [de presentatie, de presentaties].

– "Sorry maar ik kan vanavond niet uit; ik moet morgenvroeg een belangrijke presentatie geven." – "Nou en, lekker belangrijk!"
("I'm sorry but I can't go out tonight; tomorrow morning I have to give an important presentation." – "So what, who cares?!")

– Gastheer/vrouw: host/hostess [noun] [de gastheer/vrouw, de gastheren/vrouwen].
– Spreken:to speak/talk [verb] [sprak, gesproken].

– "Volgende week ga ik naar een conferentie." – "Leuk, moet je ook spreken of ga je alleen luisteren?"
("Next week I'm going to a conference." – "Nice, do you also have to present or are just attending?" Lit. "… or are you only going to listen?")

– Spreker: speaker [noun] [de spreker, de sprekers].