There are many meanings to「できる – dekiru 」、「できます – dekimasu」。
meaning :
1)Things that have never existed are made and will appear.
(ex1)ご飯ができる。- ごはんが できる。 – gohanga dekiru. – Breakfast is ready.
(ex2)急用ができる。- きゅうようが できる。 – kyuuyouga dekiru. – Something’s come up.
2)Crops etc are created. Harvest is obtained. Produced.
(ex1)作物ができる。- さくもつが できる。 – sakumotuga dekiru. – Crops are made.
3)Buildings and organizations are newly constructed. It holds.
(ex1)ビルができる。 – biruga dekiru. – The building is completed.
(ex2)チームができる。 – chi-muga dekiru. – Team is formed.
4) Buildings and organizations are newly constructed. It holds.
(ex1)彼は仕事ができる。 – かれは しごとが できる。- kareha sigotoga dekiru. – He is very competent.
5)Personality, ability, grades, etc. are excellent.
(ex1)彼は日本語できる。- かれは にほんごが できる – kareha nihongoga dekiru – He can speak Japanese.