The noun poor has 1 sense (no senses from tagged texts)
1. poor people, poor -- (people without possessions or wealth (considered as a group); "the urban poor need assistance")
Overview of adj poor
The adj poor has 6 senses (first 3 from tagged texts)
1. (18) hapless, miserable, misfortunate, pathetic, piteous, pitiable, pitiful, poor, wretched -- (deserving or inciting pity; "a hapless victim"; "miserable victims of war"; "the shabby room struck her as extraordinarily pathetic"- Galsworthy; "piteous appeals for help"; "pitiable homeless children"; "a pitiful fate"; "Oh, you poor thing"; "his poor distorted limbs"; "a wretched life")
2. (13) poor -- (having little money or few possessions; "deplored the gap between rich and poor countries"; "the proverbial poor artist living in a garret")
3. (2) poor -- (characterized by or indicating poverty; "the country had a poor economy"; "they lived in the poor section of town")
4. poor -- (lacking in specific resources, qualities or substances; "a poor land"; "the area was poor in timber and coal"; "food poor in nutritive value")
5. inadequate, poor, short -- (not sufficient to meet a need; "an inadequate income"; "a poor salary"; "money is short"; "on short rations"; "food is in short supply"; "short on experience")
6. poor -- (unsatisfactory; "a poor light for reading"; "poor morale"; "expectations were poor")