0 to agree to become involved in an organized activity: --
[ + to infinitive ] I've signed up to make the sandwiches for the party.
She's signed up for evening classes at the community college.
1 to join a group or organization: --
2 an occasion when you start doing or having something or start being a member of a group, especially by signing a document: --
3 someone who starts to do or have something, for example someone who opens a bank account: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.