"A compound is a lexeme [...] that consists of more than one stem."
Words made up of two or more morphemes that function as a single unit, often with a meaning that is not immediately predictable from its parts.
Morphology: The study of how words are formed and how they relate to each other.
Root words: The basic building blocks of words, from which other words are formed.
Prefixes: A word or letters added to the beginning of a word, which changes its meaning.
Suffixes: A word or letters added to the end of a word, which also changes its meaning.
Hyphenation: The use of a hyphen to join two or more words together to create a new word.
Stress and emphasis: The importance of stressed and unstressed syllables in compound words.
Spelling: The correct spelling of compound words, and how to identify their parts.
Homonyms and homophones: Compound words that sound the same but have different meanings or spellings.
Etymology: The history and origins of compound words, and how they have evolved over time.
Word families: Groups of related words that share the same root word, such as "play" in player, playful, or playing.
Context: How the use of compound words changes depending on the context of the sentence or phrase.
Collocations: Commonly used compound words that appear together frequently, such as "ice cream" or "hot dog".
Synonyms and antonyms: How to identify synonyms and antonyms of compound words, and how to use them effectively.
Word order: The correct order of words in a compound word, and how this can affect its meaning.
Word formation: The process of creating new compound words, including blending and borrowing from other languages.
Noun-Noun Compounds: A compound word formed by two or more nouns that together express a single idea or concept, such as "beachball" or "bookcase.".
Verb-Noun Compounds: A compound word formed by combining a verb and a noun, such as "sunset" or "jailbreak.".
Adjective-Noun Compounds: A compound word formed by combining an adjective and a noun, such as "blackboard" or "whitewash.".
Adverb-Adjective Compounds: A compound word formed by combining an adverb and an adjective, such as "hard-won" or "well-behaved.".
Adverb-Verb Compounds: A compound word formed by combining an adverb and a verb, such as "afterthought" or "backslide.".
Phrase Compounds: A compound word formed by combining two or more words that function as a single idea or concept, such as "mother-in-law" or "know-how.".
Prefix Compounds: A compound word formed by adding a prefix to a base word, such as "unfortunate" or "misunderstand.".
Suffix Compounds: A compound word formed by adding a suffix to a base word, such as "happiness" or "carelessness.".
Hyphenated Compounds: A compound word formed by uniting two or more words with a hyphen to create a single word, such as "self-esteem" or "life-long.".
Open Compounds: A compound word made up of two words that are written separately, such as "ice cream" or "traffic light.".
Closed Compounds: A compound word made up of two words that are written together without a space, such as "football" or "notebook.".
Acronyms: A word formed by the first letter of each word in a phrase, such as "NASA" or "FBI.".
Portmanteau: A word formed by blending two or more words together, such as "smog" (smoke + fog) or "brunch" (breakfast + lunch).
"Compounding, composition or nominal composition is the process of word formation that creates compound lexemes."
"Compounding occurs when two or more words or signs are joined to make a longer word or sign."
"A compound that uses a space rather than a hyphen or concatenation is called an open compound or a spaced compound."
"The meaning of the compound may be similar to or different from the meaning of its components in isolation."
"They may belong to different parts of speech, as in the case of the English word blackbird, composed of the adjective black and the noun bird."
"With very few exceptions, English compound words are stressed on their first component stem."
"English is unusual in that even simple compounds made since the 18th century tend to be written in separate parts."
"As in other Germanic languages, arbitrary noun phrases, for example 'girl scout troop', 'city council member', and 'cellar door', can be made up on the spot and used as compound nouns in English too."
"[It] would be written in English as 'Danube steamship transport company captain' and not as 'Danubesteamshiptransportcompanycaptain'."
"The addition of affix morphemes to words [...] should not be confused with nominal composition, as this is actually morphological derivation."
"Some languages easily form compounds from what in other languages would be a multi-word expression."
"This can result in unusually long words, a phenomenon known in German (which is one such language) as Bandwurmwörter ('tapeworm words')."
"Sign languages also have compounds."
"So-called 'classical compounds' are compounds derived from classical Latin or ancient Greek roots." Quotes from the paragraph: