Word Unit: Philosophical Conceptions (a science that attempts to discover the fundamental principles of the sciences, the arts, and the world that the sciences and arts influence)
Word Unit: Photovoltaic Conversion Efficiency Terms + (solar electricity technical terms applying to electricity, power generation, concentrating solar power, or CSP, solar heating, solar lighting, and solar electricity)
Word Unit: Plant Parts or Parts of Plants (generally, flowering plants have special parts that make it possible for them to exist)
Word Unit: Playing with Words (based on words from The Washington Post's "Style Invitational" in which readers were given the opportunity to take any word from the dictionary, alter it by adding, subtracting, or changing one letter, and then to provide a new definition for the modified word)
Word Unit: Poetry Terms (poetic, figures of speech, and words primarily referring to the content of various types of poems)
Word Unit: Poetry, Proverbs, Quotes, and Statements of Faith (words to live by, to inspire, and to give guidance)
Word Unit: preposition (s), prepositions (pl) (showing a relationship between words)
Word Unit: pronoun (s), pronouns (pl) (words that take the places of nouns)
Word Unit: Pumpkin Sculptures or Carvings (using the creations of pumpkins to illustrate some words)
Word Unit: Punctuation Marks with Symbols, Explanations, and Examples (this page includes a presentation of the punctuation marks or symbols that are in general use in English writing)
Word Unit: Questions Mark Punctuation (a mark of punctuation for questions)
Word Unit: Quotation Marks Punctuation (symbols at the beginning and end of a word or groups of words)
Word Unit: Quotations (some quotes about a variety of subjects)
Word Unit: Reversible Words (reversible English words that can be spelled forward and backward and still produce normal words with different meanings)
Word Unit: Robots, Robotic Topics, and Robot References + (background information about robots and applicable robotic terms)
Word Unit: Science and Technology (over the past century, knowledge of the way the universe works [science] has grown significantly, and with it the ability to apply that knowledge to everyday problems [technology] has changed the way people live)
Word Unit: Science and Technology Words from the Ancient Past to the Present, Part 1 (terms appearing in some "scientific" areas from about 2000 B.C. to 1799 A.D.)
Word Unit: Science and Technology Words from the More Recent Past to the Present, Part 2 (terms appearing in some "scientific" areas from about 1800 A.D. to 1899 A.D.)
Word Unit: Science, Technology, and Global Knowledge (the spread of information with the "wiring" of the world has improved communications between people and accelerated the pace of scientific discoveries as well as greater efficiency in the exchange of technical knowledge and applications)
Word Unit: Sesquipedalia or Sesquipedalians: Foot and a Half Long Words, Section One (obscure verbal usages that challenge your comprehension as to what they mean)