| SIN | written formula for ending a letter |
|---|---|
| SIN | with sincerity |
| SIN | written formula for ending a letter |
| SIN | the trait of being serious |
| SIN | a quality of naturalness and simplicity |
| SIN | the quality of being open and truthful |
| SIN | an earnest and sincere feeling |
| SIN | the front part of the head or skull (including the forehead) |
| SIN | English electrical engineer who founded a company that introduced many innovative products (born in 1940) |
| SIN | United States writer whose novels argued for social reform (1878-1968) |
| SIN | United States novelist who satirized middle-class America (1885-1951) |
| SIN | the Indic language of the Sindhi people |