Word

A word is a unit of language that has a meaning and a particular sound or written form, and can stand alone within a sentence. In Somali, for example, "buug" (book), "tag" (go), and "weyn" (big) are words, each carrying a specific function within the sentence.

Linguists do not agree on a single definition of a word. Some base their definition on graphic separation (spacing on either side), while others rely on phonetic or grammatical properties, such as the notion that a word cannot be divided without losing meaning.

Parts of a word

Words are composed of smaller units that carry meaning or grammatical function, known as morphemes. For example, "buugag" (books) consists of the root "buug" and a marker of plurality. Some words contain a single morpheme, while others are composed of multiple morphemes combined.

Types of words

Words are divided grammatically into classes: nouns, verbs, adjectives, conjunctions, and others. They are also distinguished between content words with full meaning (such as nouns and verbs) and function words with primarily grammatical meaning (such as conjunctions).

Writing and speech

In natural speech, words typically flow together and do not have clear boundaries. There are languages whose written form does not separate words with spaces, suggesting that graphic separation is a writing convention rather than a universal linguistic fact.

Semantic change

The meaning of words changes over time. A word can broaden its meaning, narrow it, or shift entirely to a new meaning. Languages also borrow words from other languages, particularly when new technologies emerge or when different communities interact through trade and religion.