How does 周到 mean "thoughtful"?

Question

I'm trying to learn the few remaining HSK5 words I haven't fully learned yet. This one I keep forgetting:

周到 (zhōu​dào / zhōu​dao)
CC-CEDICT: thoughtful / considerate / attentive / thorough

It would help to understand the underlying logic here, but I can't figure it out: 周到 seems like the combinations of two random characters.

周 (zhōu)
CC-CEDICT: to make a circuit / to circle / circle / circumference / lap / cycle / complete / all / all over / thorough / to help financially

到 (​dào)
CC-CEDICT: to (a place) / until (a time) / up to / to go / to arrive / (verb complement denoting completion or result of an action)

I get nothing from this, and googling 周到 etymology didn't give anything useful.

Question: How does 周到 mean "thoughtful"?

Answer 1

周 can be taken as 周边 or 四周(everywhere around).

到 can be 到达(reached or arrived).

周到，as a whole, can be understood as reached everywhere around.

So, metaphorically, "reached everywhere" suggests "having considered all the aspects", hence "it's thoughtful".

In Chinese, we say: 周到代表'周'围四周都照顾'到'了。It's close to the English word "thoughtful".

Answer 2

Sorry I don't know this word's etymology. But maybe understand the synonym helps to remember.

As far as I know, 周到 has nearly the same meaning as 面面俱到（miàn miàn jù dào）. 周 (zhōu) is like 面面（miàn miàn）, meaning in almost all aspects; and 到 (​dào) means taking care of it. So that 周到 means taking care of all aspects, that is thoughtful.

Answer 3

周 - everywhere (all aspects)

到 - reach (attend to)

周到 (attended to all aspect) = thoughtful / considerate / attentive / thorough

Example:

服务周到; 服待周到 (attentive service)

想得周到 (think of everything - not missing anything)