say it: di-ZAHY-ning
designing is a noun and adjective meaning "the act of working out the form of something (as by making a sketch or outline or plan)". It carries 2 recorded senses.
the act of working out the form of something (as by making a sketch or outline or plan)
“he contributed to the design of a new instrument”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for designing come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.