| TR | read with difficulty |
|---|---|
| TR | follow, discover, or ascertain the course of development of something |
| TR | make a mark or lines on a surface |
| TR | copy by following the lines of the original drawing on a transparent sheet placed upon it |
| TR | make one's course or travel along a path |
| TR | pursue or chase relentlessly |
| TR | to go back over again, as of a route or steps |
| TR | discover traces of |
| TR | an element that occurs at very small quantities in the body but is nonetheless important for many biological processes |
| TR | a utility program that exhibits the sequence and results of executing the instructions in another program |
| TR | (usually followed by `to') able to be traced to |
| TR | capable of being traced or tracked |