Spleen

1. v. t. To dislke.
2. n. A peculiar glandlike but ductless organ found near the stomach or intestine of most vertebrates and connected with the vascular system; the milt. Its exact function in not known.
3. n. Anger; latent spite; ill humor; malice; as, to vent one’s spleen.
4. n. A fit of anger; choler.
5. n. A sudden motion or action; a fit; a freak; a whim.
6. n. Melancholy; hypochondriacal affections.
7. n. A fit of immoderate laughter or merriment.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.