sin·ew·y 
(sĭny-ē)
(sĭny-ē)adj.
1. Consisting or full of sinews, as:
a. Stringy and tough: a sinewy cut of beef.
b. Lean and muscular. See Synonyms at muscular.
2. Strong and vigorous: sinewy prose.
- Frankfurter
- frankincense
- Frankish
- Frank James Cooper.
- Frank Julian
- franklin
- Franklin
- Franklin
- Franklin
- Franklin
- Franklin
- Franklin
- Franklin Delano
- Franklin D. Roosevelt Lake
- franklinite
- Franklin stove
- Franklin tree
- Frank Lloyd
- frankly
- (Frank) Macfarlane
- Frank Morrison
- Frank Nathan Daniel
- frankness
- Frank Patrick
- Frank Philip