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1. Producing or capable of producing crops, goods, or services, especially in abundance: a productive stretch of land; a productive employee.
2. Marked by abundant production or achievement: a productive career. See Synonyms at fertile.
3. Yielding favorable or useful results; constructive: a productive suggestion.
4. Economics Of or involved in the creation of goods and services to produce wealth or value.
5. Effective in achieving specified results; originative. Used with of: policies productive of much harm.
a. Producing mucus or sputum: a productive cough.
b. Forming new tissue: a productive inflammation.
a. Of or relating to the linguistic skills of speaking and writing.
b. Of or relating to a linguistic element or rule that can be used to form further examples of a particular feature or pattern. The English past tense suffix -ed is productive since it continues to be added to new verbs to form the past tense.