List of expert words

The alphabetical list of words here are rare and only some people know about it. Source YT video: (Lavalava, others not included in source)

'''Please note that some words might not work. If one doesn't work, report it and we will remove it.'''

Reminder: Long words aren't always considered expert words

A
Araara(s)

Abyssopelagic

Acetylsalicylate

Acciaccatura

Adenocarcinomas

Adscititious

Adzelike

Aeroballistic(s)

Aerothermodynamic(s)

Agrostemma

Albespyne

Aflaj

Altazimuth

Amakwerekwere

Amritattva

Amphisbaena

Amaranthaceous

Anaclises

Anacoluthon

Aniseikonia

Anguilliform

Antieavesdropping

Antihypertensive(s)

Appoggiatura

Apfelstrudel

Arccsc

Arctiid

Arfvedsonite

Arrhenotoky

Arikis

Ashtanga

Asklent

Assegaaiing

Autarkik

Awmrie

Azulejo

B
Baaskaap

Banderillero

Bandoline

Banjax

Bangalay

Barmitzvah(s)

Benthos

Benzanthracene

Bergschrund

Bhikkhuni

Bizjet

Blatherskite(s)

Blutwurst

Boilover

Borborygmus

Bougainvillaea

Boxwallah

Bronchopneumonia(s)

Bravura

Breatharian

Brouhaha

Bruhaha

Buqsha

Burnsides

C
Cacafuego

Cacoethes

Canorous

Capercaillie

Callipygian

Callithumpian

Carmagnole

Chiliad

Chanticleer

Chateaubriand

Chautauqua

Chechaquo

Cephalochordate(s)

Chrysoberyl

Clepsydra

Cokuloris

Coloquintida

Colporteur

Comess

Commensalism

Concinnity

Congii

Conniption

Coriaceous

Counter-Countermeasures

Cracovienne

Criticaster

Cryptozoology

Cyanic

Cybersquatting

Cynghanedd

Czareviches

Caterwaul(ing)

D
Daimokus

Dandiprat

Dariole

Deasil

Decubitus

Defervescence

Dharmshala

Doxycycline

Deracinate

Dharmsala

Diezeugmenon

Digerati

Disenthral

Disaccharide

Divaricate

Dohyo

Doryphore

Dragoman

Duhkha

Dulciloquy

Dukkeripen

Durchkomponiert

Duumvirate

E
Ecclesiasic(ism)(s)

Edacious

Effable

Einkorn

Eleemosynary

Ektexine

Embourgeoisement

Emmenagogue

Ensorcell

Entomophagy

Enzymological

Ergometer(s)

Erubescent

Ervalenta

Estranghelo

Ethylenediaminetetraacetates

Eurythmic

Eviternity

Exsanguine

Extramundane

F
Fauxbourdon

Fahlerz

Festschrift

Fibranne

Fizzgig

Flocculent

Flimflam(mery)

Flibbertigibbet(s)

Foederatus

Forehanded(ness[es])

Frangipani

Frankalmoign

Fraxinella

Freehanded(ness[es])

Fricandeau(x)

Funambulist

Furuncle

Futhark

Futz

Fylfot

G
Galligaskins

Gedankenexperiments

Gegenschein

Gemutlichkeit

Gewurztraminer

Genistein

Glockenspiel

Gobbledygook

Gohonzon

Gruyere

H
Hackmatack

Hackerazzis

Halakahs

Hallux

Hartebeest

Haruspex

Hide-and-seek

Hojatoleslam

Humdudgeon

Hwyl

Hygge

Hydrocellulose(s)

Hmmm

Highjinks

Hobbledehoyhood

I
Iamb((u)s)

Ijtihad

Incarnadine

Incrassate

Indinavir

Incunabula

Iontophoresis

Isoantigenic

Ixia

Izvestiya

J
Jamahiriya

Jambalaya

Jasmonate

Jinriksha

Jipijapa

Jumentous

Jovial

Jovysaunce

K
Kabaddi

Kaffirboom

Kahikatea

Kaikawaka

Kaikomako

Kakapo(s)

Kalamdan

Kamaaina

Kamela

Kamotiqs

Kantikoy

Karateka

Karuhiruhi

Kashruth

Katsura

Katzenjammer(s)

Kawanatanga

Kazatzka

Kefir

Keffiyeh

Kellaut

Kenspeckle

Keratinophilic

Kerseymere

Kestrel

Kex

Khaddar

Khansamah

Khidmutgar

Kgotla

Khansamah

Kirschwasser(s)

Kikuyu

Kinnikinnick(s)

Klangfarbe

Klebsiella

Klipspringer

Knackwurst

Koekoea

Koftgari

Kokowai

Kolkhoz/es/nik/niki

Komitaji

Kopiyka

Kopje

Koulibiaca

Kouskous

Krakowiak

Kumarahou

Kurrajong

Kwaito

Kwashiorkor

L
Lactarium

Landsknecht

Langostino

Lansquenet

Latitud(inarian)(ism)(s)

Lavalava

Lazzaroni

Leukaemogenesis

Leylandii

Liripipe

Logomachy

Lollapalooza

Luculent

Luftmensch

Lwei

Lycanthropy

Lysosomal

Lehrjahre

M
Mesdemoiselles

Mesencephalon(s)

Magnetostriction(s)

Magnetoresistance

Maharajah

Mahewu

Malacostracan(s)

Malentendu

Mbaqanga

Mamaguying

Merveilleux

Meshuggeneh

Mishmashes

Milquetoast

Mim

Mimsy

Monocotyledonous

Monchiquite

Moonraker

Mosbolletjie

Muumuu

Mpret

Mridangam

Mujahedeen

Myelosuppression

Mzungu

N
Naartjie

Nachtmaal

Nanotechnology(ies)

Nduja

Ne'er-do-weel

Nenuphar

Nincompoop(er)(ies)

Nickumpoop

Nomenklatura

Nonchruchgoer(s)

Numnah

Nunatak

Nabks

O
Obstreperous

Omadhaun

Omnicompetence

Omophagy

Omphalos

Onychocryptosis

Oojamaflip

Oxyphenbutazones

Opsimath

Organochlorine

Osteoarthritic(s)

Oxyrhynchus

Oyez

Ozeki

Opgefok

P
Paczki

Pancreozymin

Paradente

Pavonazzo

Pedicular

Pipiwharauroa

Piwakawaka

Plenipotentia/ry/ries

Pompholyx

Polysaccharide(s)

Porbeagle(s)

Pozzuolana

Pneumokoniosis

Pranayama

Privatdozent

Psalmbook

Psalmody

Pseudo-anglicism

Ptarmigan(s)

Pulchritudinous

Q
Qajaq

Qalamdan

Qasida

Qawwalis

Qindarka

Quidnunc

Quincunx

Qulliq

Qwerty

R
Raconteur

Raillery

Ramequin

Ramgunshoch

Rangatiratanga

Rapprochement

Ratah

Ratatouille

Rensselaerite

Rhyparography

Rigsdaler

Rijksdaaler

Rubicund

Rudbeckia

Rufiyaa

Rationalization

S
Sackbut

Samekh

Satyagrahi

Schistosomiasis

Schlemiehl

Sesquipedalian

Sforzando

Shamiyanah

Shiitake

Skikjoring

Skimmington

Shadchan/im

Shakuhachi

Shammasim

Shamiyanah

Shakuhachi

Shavasana

Sheqalim

Shekel

Shibuichi

Shidduchim

Shivoo

Sixaine

Shongololo

Sokaiya

Stichomythia

Stukkend

Suedehead

Superheterodyne

Shhh

T
Tableaux

Taeniafuge

Tarsometatarsus

Tawheowheo

Thrombophlebitis

Tibiofibulae

Tibouchina

Tikoloshe

Timenoguy

Tiktaalik

Triskaidekaphobia

Tsetse(s)

Tsesarewitches

Tsktsking

Tsotsitaal

Tuatara(s)

Tumatakuru

Turangawaewae

Tmesis

Turntablists

U
Uniped

Uakari

Unconscionable

Ununenniums

Usquebaugh

V
Vaivode

Valvassor

Vedutisti

Vizsla

Vetiver

Vihuela

Voortrekker

Vouvray

W
Whippoorwill's-boot(s)

Weltanschauung

Whatshername(s)

Whatshisname(s)

Whippoorwill's-shoe(s)

Whatchamacallit

Wishtonwish

Witgatboom

Witwanton

Woiwode

Wysiwyg

X
Xanthan

Xanthophobia

Xenodiagnosis

Xerus(es)

Xiphisternum

Xystos

Y
Yahrzeit

Yakitori

Yfere

Yglaunst

Yslaked

Yukata

Z
Zabaglione

Zabajone

Zante

Zantedeschia

Zantewood

Zeitgeist

Zemstvo

Zinjanthropus

Zikkurat

Zwischenzug

Zugzwang

Zymotechnic

Zyzzyva(s)

Zzz