An extensive knowledge of the exact meanings of English words accompanies outstanding success in today’s world more often than any other single characteristic we have been able to isolate and measure. We all should contribute some vocabulary words so others can read and benefit please feel free to use some exmaples how to use that new word in different ways. Thanks.
Preantepenultimate. (n) (adj)
From the Latin “prae” (before), “ante” (before), “paene” (almost), and “ultimate” (last).
Meaning: The fourth to last in a series.
Example: Chapter 7 is the preantepenultimate chapter of the book.
Related terms: Antepenultimate; penultimate; ultimate.
BrianL first let me say welcome to the forum and second let me thank you for sharing such amazingly mind twister tongue tangling word. 
It is for sure an addition to my vocabulary. If you have time please bless us more with your knowledge.
Thanks for the welcome. I like it here.
I plan on posting more words, along with recordings of their pronunciations. My microphone is at home, though; so I won’t be able to record until later today.
Until then:
Atrophy. (n) (v)
From the Greek Atrophia–to deteriorate; deterioration.
Meaning: to decay, or decline in usefulness–especially due to lack of use.
Example: The athlete’s muscles had severely atrophied while he was in the hospital.
epicaricacy -– a malicious satisfaction at the misfortunes of others
Not in OED, but found in reputable prior dictionaries. English later borrowed the German word schadenfreude, of like meaning.
Hi Milanya! I am a great fan of your poetry 
and thanks for sharing this informative word can you also break it down so I can catch the right pronunciation of it? Also if you can use it in a sentence it will be great.
hi for you
Bye for you
live love and laugh.
It’s pronounced “eh puh kare ih ka see”; or “ɛpɪˈkærɪkəsi” for you IPA users.
tribulation trib-yuh-LAY-shun noun
Meaning
: distress or suffering resulting from oppression or persecution; also : a trying experience
Example Sentence: Over the past year, Sara and Brian have experienced all the trials and tribulations that come with owning one’s first home.
Did you know?
The writer and Christian scholar Thomas More, in his 1534 work “A dialoge of comforte against tribulation,” defined the title word as “euery such thing as troubleth and greueth [grieveth] a man either in bodye or mynde.” These days, however, the word “tribulation” is typically used as a plural count noun, paired with its alliterative partner “trial,” and relates less to oppression and more to any kind of uphill struggle. “Tribulation” derives via Middle English and Old French from the Latin verb “tribulare” (to oppress or afflict), related to “tribulum,” a noun meaning “threshing board.”
margaritaceous
[mahr-ger-i-tey-shuhs] –(adjective) resembling mother-of-pearl; pearly.
Synonyms: opalescent, hydrophanous,iridescent, milky, nacreous, opalescine, pearly, perlaceous, rainbow-colored.
Imperturbation.
Meaning: Free of a troubled mind; calmness.
BrianL: Thanks for the Audio it really helps to pronounce the word correctly. I have a small favor to ask can you please speak the word a tiny bit slower so new people like me can get the exact phonetics of the word and also if you can put it into a sentence it will help greatly with the usage of that particular word I know I am asking for too much but can you please help us out ???
Milanya: Will it be correct if I use this word lik… “The pearl in your ring is margaritaceous.”
tantivy - tan-TIV-ee - adverb
Meaning - : in a headlong dash : at a gallop
Example Sentence:
Once the school bell sounded signaling dismissal, the children rose from their desks and headed tantivy for the exits.
Did you know?
“Tantivy” is also a noun meaning “a rapid gallop” or “an impetuous rush.” Although its precise origin isn’t known, one theory has it that “tantivy” represents the sound of a galloping horse’s hooves. The noun does double duty as a word meaning “the blare of a trumpet or horn.” The second use probably evolved from confusion with “tantara,” a word for the sound of a trumpet that came about as an imitation of that sound. Both “tantivy” and “tantara” were used during foxhunts; in the heat of the chase people may have jumbled the two.
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philoprogenitive - fill-uh-proh-JEN-uh-tiv adjective
Meaning
*1 : tending to produce offspring : prolific
2 : of, relating to, or characterized by love of offspring
Example Sentence
“As the multitudes born in the philoprogenitive years following World War II leave the labor force after 2010, the retired population will mushroom.” (A.F. Ehrbar, Fortune, August 1980)
Did you know?
Philoprogenitive" (a combination of “phil-,” meaning “loving” or “having an affinity for,” and Latin “progenitus,” meaning “begot” or “begotten”) can refer to the production of offspring or to the loving of them. Nineteenth-century phrenologists used the word to designate the “bump” or “organ” of the brain believed to be the seat of a parent’s instinctual love for his or her children. Despite the word’s scientific look and sound, however, it appears, albeit not very frequently, in all types of writing — technical, literary, informal, and otherwise.
eleemosynary
el-ih-MAH-suh-nair-ee
adjective
Meaning
: of, relating to, or supported by charity
Example Sentence
“All politicians realize that senior citizens are the biggest contributors to eleemosynary causes … and are the most dependable source of volunteer hours for the public well-being.”
Hello,
What language is (eleemosynary )?
thanks.
Milanya and Brian you rock!