The comparative question
Linguistic typology compares how languages organize the same broad functions. It asks, for example, where an object normally stands relative to a verb, whether a noun phrase has an article, or how a speaker marks the source of information. It does not rank languages by complexity or measure how far they are from English. A useful comparison begins with a narrow question and a written definition of the observations that will count as evidence.
A feature is an analyst’s comparable property, not necessarily a category every speaker recognizes in the same way. WALS chapter 81 defines dominant order using transitive declarative clauses with two full noun arguments. If one study counted pronoun objects, another counted subordinate clauses, and a third used only monumental verse, their labels would not be directly comparable. The definition and sampling frame are part of every data point.
Functions and forms
Start with a function and then ask how each language expresses it. A definite reference can be associated with a separate word, a noun affix, a demonstrative, or a construction without a dedicated article. WALS chapter 37 explicitly sets criteria for counting definite articles and cautions that descriptions do not always reveal an anaphoric demonstrative’s article-like uses. “No article” is therefore a claim about a defined grammatical marker, not a claim that speakers cannot identify a known referent.
Alternatively, start with a form and compare its functions. A particle in one language may be a tense marker, in another an evidential, and in a third a discourse connective. Similar English glosses do not make these categories identical. Align meanings, distributions, and grammatical behavior before deciding that two forms instantiate the same feature.
Coding a case
A feature should have explicit possible values, a rule for mixed systems, and a way to record unknown data. To code dominant order, inspect a set of relevant clauses, note subject and object by independent evidence, and report the clause types excluded. To code articles, test whether a candidate accompanies nouns, what reference it marks, and whether it is a demonstrative used in that role. Record the grammar, page, examples, period and dialect that justify the value. A digital atlas value is the end of this analysis, not a substitute for it.
Exercise: compare two published language descriptions for “definite article.” Write the exact evidence each author uses and apply one common definition. If the sources leave the distribution unclear, the correct result is “unknown under this definition,” not a guess based on English translation.
Modern-language examples on this page clarify a linguistic pattern. They do not establish unattested sounds or forms for an ancient language. Follow the cited sources below and keep editorial readings separate from the surviving trace.