There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.

Qenya 

tengwe

noun. writing

Qenya [Ety/TEK; EtyAC/TEK; PE21/57; PE22/022] Group: Eldamo. Published by

tengwa

noun. letter; writing, grammar

Qenya [Ety/TEK; EtyAC/TEK; PE19/043; PE22/031; SDI2/tengwar; TII/Tengwar] Group: Eldamo. Published by

(a)ranya

adjective. free

ista

noun. knowledge

istare

noun. knowledge

istya

noun. knowledge

Qenya [Ety/IS; PE21/12; PE21/13; PE22/020] Group: Eldamo. Published by

mirima

adjective. free

qanta

adjective. full

Qenya [Ety/KWAT; PE22/019; PE22/022; PE22/047; PE23/101] Group: Eldamo. Published by

ranya

adjective. free

ólama

noun. consonant

Qenya [PE18/030; PE22/011] Group: Eldamo. Published by

óma

noun. voice

Qenya [Ety/OM; PE22/023] Group: Eldamo. Published by

óman

noun. vowel

Qenya [Ety/OM; EtyAC/OM; PE18/032] Group: Eldamo. Published by

ómatehta

noun. vowel-sign


Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.