This is the 6559th most frequent Japanese word.
ツヨ
"ツヨ" (Tsuyo) is not a standalone word in standard Japanese; it is typically part of other words, often related to "strong" (強, tsuyo).
In this sentence, 'ツヨ' is used as part of '強い' (tsuyoi), which means 'strong,' describing the abstract attribute of a person's will.
彼はとてもツヨい意志を持っています。
He has a very strong will.
Here, 'ツヨ' again forms '強い' (tsuyoi), describing the physical robustness of the rope.
このロープはツヨくて切れません。
This rope is strong and cannot be cut.
In this example, 'ツヨ' included in '強い' (tsuyoi) describes the skill level or competitive strength of a team.