tread1 past tense trod, past participle trodden
to put your foot on or in something while you are walking [= step]
step in/on[intransitive always + adverb/preposition] British English
Sorry, did I tread on your foot?
She trod barefoot on the soft grass.
to be very careful about what you say or do in a difficult situation:
If I wanted to keep my job, I knew I'd have to tread lightly.
a) [transitive] British English
to press or crush something into the floor or ground with your feet [= track American English]
tread something into/onto/over something
Stop treading mud all over my clean kitchen floor!
Bits of the broken vase got trodden into the carpet.
to crush grapes with your feet in order to produce juice for making wine
4 British English written
to take a particular action or series of actions:
Getting the right balance between home and work is a difficult path to tread.
5 past tense and past participle treaded
to stay floating upright in deep water by moving your legs as if you are riding a bicycle
to make no progress in a particular situation, especially because you are waiting for something to happen:
All I could do was tread water until the contracts arrived.
walk[intransitive,transitive always + adverb/preposition] literary
David trod wearily along behind the others.
to work as an actor