put one’ s finger on fml) to find or show exactly(the cause of trouble) Examples Something is wrong with this room but I cant put my finger on what it is I could not quite put my finger on what was different about simoneput one’s finger on — (infml) to find or show exactly (the cause of trouble) Examples • Something is wrong with this room, but I can’t put my finger on what it is. • I could not quite put my finger on what was different about Simone