Why is it der Reiseleiter?

Reiseleiter ends in -er, and most nouns ending in -er are masculine: in a German dictionary, 86% of them take der.

All nouns ending in -er
Sense 1
der

Meaning

[1] person who looks after a travel company

[1] Person, die eine Reisegesellschaft betreut

Examples

[1] "The tour guide, already in coat and hat, kept his last speech"

[1] „Der Reiseleiter, schon in Mantel und Mütze, hat seine letzte Ansprache gehalten.“

[1] "The tour guide asks us to the table, there is crab soup and lamb fillete"

[1] „Der Reiseleiter bittet uns zu Tisch, es gibt Krabbensuppe und Lammfilet.“
More source examples (2)

These dictionary examples can include historical and less common uses.

[1] "The rescue came in the form of a red and white-dressed tour guide who called into a megaphone that all guests were welcome and should go to the buses"

[1] „Die Rettung kam in Gestalt eines rot- und weißgekleideten Reiseleiters, der in ein Megaphon rief, dass alle Gäste willkommen seien und sich zu den Bussen begeben sollten.“

[1] "Under the careful hands of experienced tour guides, they should be distributed at lonely rapids of Ireland in minimum distances to go to Angelnä"

[1] „Unter den behutsamen Händen erfahrender Reiseleiter sollen sie in Mindestabständen an einsamen Stromschnellen Irlands verteilt werden, um dort zu angeln.“

Declension

1 Singular Plural
Nominativ der Reiseleiter die Reiseleiter
Genitiv des Reiseleiters der Reiseleiter
Dativ dem Reiseleiter den Reiseleitern
Akkusativ den Reiseleiter die Reiseleiter

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary