(said of a country) Not primitive; not third-world. / Mature. / Containing man-made structures such as roads, sewers, electric lines, buildings, and so on. / Having useful or necessary infrastructure.

simple past tense and past participle of develop

plural of development

A group of building complexes or apartments. Often used for low income housing.

A process of development.

In the process of development. / Of a country: becoming economically more mature or advanced; becoming industrialized.

present participle and gerund of develop

Archaic spelling of develop.

(transitive, now rare) To discover, find out; to uncover. / (intransitive) To change with a specific direction, progress. / (transitive, intransitive) To progress through a sequence of stages.

(uncountable) The process of developing; growth, directed change.