pain

v. hurt, cause pain; grieve, sadden

n. sensation of physical discomfort (often due to illness or injury); emotional suffering or distress; someone or something that is irritating or problematic

Pain is a sensation transmitted from sensory nerves through the spinal cord and to the sensory area of the cerebrum, where the sensation is perceived. It is defined by the International Association for the Study of Pain (IASP) as “an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage”.
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Pain is an unpleasant feeling that is conveyed to the brain by sensory neurons. The discomfort signals actual or potential injury to [more]Pain - Community and Resources

n. bread, loaf

(n.)
Uneasiness of mind; mental distress; disquietude; anxiety; grief; solicitude; anguish.
  

(n.)
To render uneasy in mind; to disquiet; to distress; to grieve; as a child's faults pain his parents.
  

(n.)
To put to bodily uneasiness or anguish; to afflict with uneasy sensations of any degree of intensity; to torment; to torture; as, his dinner or his wound pained him; his stomach pained him.
  

(n.)
To inflict suffering upon as a penalty; to punish.
  

(n.)
Specifically, the throes or travail of childbirth.
  

(n.)
See Pains, labor, effort.
  

(n.)
Punishment suffered or denounced; suffering or evil inflicted as a punishment for crime, or connected with the commission of a crime; penalty.
  

(n.)
Any uneasy sensation in animal bodies, from slight uneasiness to extreme distress or torture, proceeding from a derangement of functions, disease, or injury by violence; bodily distress; bodily suffering; an ache; a smart.