sap

Short definition from Wiktionary

Noun

1. 1
   The juice of plants of any kind, especially the ascending and descending juices or circulating fluid essential to nutrition.
2. 2
   The sapwood, or alburnum, of a tree.
3. 3
   Any juice.
4. 4
   Vitality.
5. 5
   A naive person; a simpleton.
6. 6
   A short wooden club; a leather-covered hand weapon; a blackjack.
7. 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.
8. 8
   Initialism of statutory adoption pay, payments made by an employer to an employee who is absent from work after the adoption of a child.
9. 9
   Initialism of special access program.
10. 10
    Initialism of second audio program.
11. 11
    Initialism of structural adjustment program.
12. 12
    Initialism of speech act participant.
13. 13
    Initialism of superabsorbent polymer.

Verb

1. 1
   To drain, suck or absorb from (a tree, etc.).
2. 2
   To exhaust the vitality of.
3. 3
   To strike with a sap (with a blackjack).
4. 4
   To subvert by digging or wearing away; to mine; to undermine; to destroy the foundation of.
5. 5
   To pierce with saps.
6. 6
   To make unstable or infirm; to unsettle; to weaken.
7. 7
   To gradually weaken.
8. 8
   To proceed by mining, or by secretly undermining; to execute saps.
9. 9
   To strike with a sap (a blackjack)

Proper noun

1. 1
   Initialism of Scientific Advisory Panel.
2. 2
   Initialism of South African Police.
3. 3
   Initialism of South Africa Party.
4. 4
   SAP AG, derived from the German Initialism of Systeme, Anwendungen und Produkte in der Datenverarbeitung, one of the world's largest software companies.