sap

noun7

1. •
   The juice of plants of any kind, especially the ascending and descending juices or circulating fluid essential to nutrition.
2. •
   Any juice.
3. •
   (slang) A naive person; a simpleton.

   • Look at the sap mowing our lawn while we pretend our own lawnmower is broken.
4. •
   (figurative) Vitality.
5. •
   (US, slang) A short wooden club; a leather-covered hand weapon; a blackjack.

   • I risk my whole future, the hatred of the cops and Eddie Mars' gang. I dodge bullets and eat saps. — 1944
6. •
   The sapwood, or alburnum, of a tree.
7. •
   A narrow ditch or trench made from the foremost parallel toward the glacis or covert way of a besieged place by digging under cover of gabions, etc.

verb8

1. •
   To make unstable or infirm; to unsettle; to weaken.

   • Ring out the grief that saps the mind[…] — 1850
2. •
   To gradually drain (someone's energy or vitality).

   • He saps my energy.
3. •
   (figurative) To exhaust the vitality of.

   • Somewhat he knoweth of art magical, yet useth not that art; for it sappeth the life and strength, nor is it held worthy that a Demon should put trust in that art, but rather in his own might and main. — 1922
4. •
   (slang) To strike with a sap (with a blackjack).

   • [A]s he passes the mouth of a narrow alley two men step out quickly. One of them saps Marlowe expertly — they drag him out of sight. — 1944
5. •
   To pierce with saps.
6. •
   To subvert by digging or wearing away; to mine; to undermine; to destroy the foundation of.

   • Nor safe their dwellings were, for sapped by floods, / Their houses fell upon their household gods. — 1717
7. •
   To proceed by mining, or by secretly undermining; to execute saps.
8. •
   To drain, suck or absorb sap from (a tree, etc.).

noun7

1. •
   Initialism of structural adjustment program.
2. •
   Initialism of superabsorbent polymer.
3. •
   Initialism of superabsorbent powder, made of superabsorbent polymer.
4. •
   (UK) Initialism of statutory adoption pay, payments made by an employer to an employee who is absent from work after the adoption of a child.
5. •
   (US) Initialism of special access program.
6. •
   Abbreviation of second audio program.
7. •
   Initialism of speech act participant.