1tread 
/ˈtrɛd/ verb
treads; trod /ˈtrɛd/ verb /ˈtrɑ:d/ also tread·ed; trod·den /ˈtrɑ:dn̩/ or trod tread·ing 1 [no obj] : to walk
▪ They slowly trod back to the camp. ▪ Don't tread on the grass. — often used figuratively ▪ He has gone where others fear to tread. [=he has done things that other people are afraid to do] ▪ If you're thinking about asking for a raise, I advise you to tread lightly. [=to proceed carefully] 2 [+ obj] : to walk on or along (something)
▪ treading the halls of the Senate — often used figuratively ▪ The company is treading a fine line between tradition and innovation. 3 [+ obj] : to form (a path) by walking
▪ Countless footsteps have trodden a path to their door. 4 [+ obj] : to crush or press (something) with your feet
▪ Don't tread dirt into the carpet. ▪ treading grapes for wine
▪ They slowly trod back to the camp. ▪ Don't tread on the grass. — often used figuratively ▪ He has gone where others fear to tread. [=he has done things that other people are afraid to do] ▪ If you're thinking about asking for a raise, I advise you to tread lightly. [=to proceed carefully]
▪ treading the halls of the Senate — often used figuratively ▪ The company is treading a fine line between tradition and innovation.
▪ Countless footsteps have trodden a path to their door.
▪ Don't tread dirt into the carpet. ▪ treading grapes for wine
tread on someone's toes — see 1toe
tread the boards
old-fashioned : to perform on a stage as an actor
▪ It's been many years since he first trod the boards on Broadway.
▪ It's been many years since he first trod the boards on Broadway.
tread water 1 : to float upright in deep water by moving your legs and usually your arms forward and backward 2 : to stay in a situation without making any progress
▪ I'm just treading water financially right now.
▪ I'm just treading water financially right now.
