What does TOOL stand for?

Easco Hand Tools, Inc. (SAUS)

Teams of Our Lady - See also END (EAIO)

Technology of Object-Orientated Languages and Systems (SAUS)

Test Oriented Onboard Language (SAUS)

Test-Oriented Operated Language - Programming language - Computer science

Test-Oriented Operation Language (SAUS)

Test-Oriented Operator Language (SAUS)