1.  seed (e.g. of a plant);  pip;  kind;  variety;  quality;  tone
2.  material (e.g. for an article);  matter (e.g. of a story);  subject;  theme;  (news) copy
3.  ingredient;  leaven (bread);  main ingredient of a sushi
4.  cause;  source
5.  trick;  secret;  magician's trick;  inside story
6.  paternal blood;  lineage
7.  breed (of a stock);  sperm;  semen
8.  10-point card;  tane;  animal card
oft. as タネ