What is the meaning of Clo?

duty, tariff, customs duty (on export and import)

customs, toll (fee for passing through the border of a certain territory)

customs, toll (fee for goods brought somewhere that were carried through somewhere)

toll (fee for permission to do some activity sometimes taken from the proceeds of some activity)

customs right (privilege to collect customs)

customs building, toll building (place for collecting customs)

wage, salary (reward for someone hired for work)

chlorine

lock, bolt

impediment, difficulty

consonance or correspondence of consonants in cynghanedd; often figurative

lock, brake; mechanism that explodes charge in gun

canal lock

cluster, bunch

lock

conclusion

Source: wiktionary.org