Double meaning i think:
Pith
1. The soft spongy substance in the center of the stems of many plants and trees, especially those of the dicotyledonous or exogenous classes. It consists of cellular tissue.
2. To destroy the central nervous system of (an animal, as a frog), as by passing a stout wire or needle up and down the vertebral canal.
pith
1. the choicest or most essential or most vital part of some idea or experience; "the gist of the prosecutor''s argument"; "the heart and soul of the Republican Party"; "the nub of the story"
2. soft spongelike central cylinder of the stems of most flowering plants
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Rich
1. To enrich.
2. Having an abundance of material possessions; possessed of a large amount of property; well supplied with land, goods, or money; wealthy; opulent; affluent; -- opposed to poor.
rich
1. strong; intense; "deep purple"; "a rich red"
2. affording an abundant supply; "had ample food for the party"; "copious provisions"; "food is plentiful"; "a plenteous grape harvest"; "a rich supply"
3. marked by great fruitfulness; "fertile farmland"; "a fat land"; "a productive vineyard"; "rich soil"
4. highly seasoned or containing large amounts of choice ingredients such as butter or sugar or eggs; "kept gorging on rich foods"; "rich pastries"; "rich eggnogg"
5. possessing material wealth; "her father is extremely rich"; "many fond hopes are pinned on rich uncles"
6. very productive; "rich seams of coal"
7. suggestive of or characterized by great expense; "a rich display"
8. high in mineral content; having a a high proportion of fuel to air; "a rich vein of copper", "a rich gas mixture"
9. having an abundant supply of desirable qualities or substances (especially natural resources); "blessed with a land rich in minerals"; "rich in ideas"; "rich with cultural interest"
10. marked by richness and fullness of flavor; "a rich ruby port"; "full-bodied wines"; "a robust claret"; "the robust flavor of fresh-brewed coffee"
11. of great worth or quality; "a rich collection of antiques"
12. pleasantly full and mellow; "a rich tenor voice"
Rish
1. A rush (the plant).
Sich
1. Such.
Sigh
1. A deep and prolonged audible inspiration or respiration of air, as when fatigued or grieved; the act of sighing.
2. To inhale a larger quantity of air than usual, and immediately expel it; to make a deep single audible respiration, especially as the result or involuntary expression of fatigue, exhaustion, grief, sorrow, or the like.
3. To exhale (the breath) in sighs.
sigh
1. an utterance made by exhaling audibly
2. heave or utter a sigh; breathe deeply and heavily; "She sighed sadly"
3. a sound like a person sighing; "she heard the sigh of the wind in the trees"
4. utter with a sigh
Sikh
1. of or relating to the Sikhs or their religious beliefs and customs
2. an adherent of Sikhism