marginal (EN)

adjective, noun

adjective “marginal”

1. at or near the edge; not central; peripheral
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   The city council is investing in parks located in marginal neighborhoods to encourage development.
2. small or insignificant; not important
   The software update brings only marginal improvements in performance, so users may not notice a difference.
3. barely acceptable or adequate; close to a lower limit
   His exam scores were marginal, and he barely passed the course.
4. written in the margin of a page or book
   She wrote marginal notes in her textbook to help her remember key concepts.
5. (in economics) relating to the effect of a unit change in a variable
   Economists study marginal cost to determine how adding one more unit of production affects overall expenses.
6. (of land) not very productive; barely suitable for agriculture
   The farmer struggled to grow crops on the marginal land due to poor soil quality.
7. (UK, politics) relating to a constituency won by a small margin
   The election campaign focused heavily on marginal seats that could swing the result.

noun “marginal”

1. (UK) a constituency where elections are won by a small margin
   The candidate campaigned extensively in the marginals to secure more votes.