1An abbreviation for Saturday (used on calendars/schedules as a single-character label).
ホワイトボードの予定表には『土』と書かれている。
The schedule on the whiteboard has '土' written (meaning Saturday).
今度のイベントは土に行われますのでご注意ください。
Please note that the upcoming event will be held on '土' (Saturday).
2Earth; dirt; soil — the material on the ground (as in garden soil).
庭の土が乾いているから水をやったほうがいい。
The soil in the garden is dry, so you should water it.
この植物は酸性の土を好む。
This plant prefers acidic soil.
3Land; ground — referring to a region or the physical ground (similar to 'tochi').
その地方の土は火山灰が混じっている。
The soil in that region contains volcanic ash.
4The 'earth' element in the Five Phases (Wu Xing) — used in philosophy, astrology, and traditional thought.
風水では五行の土が中心や安定を表すことが多い。
In feng shui, the earth (土) of the Five Phases often represents center and stability.