困kùn

to strand. 7 strokes, radical 囗, first met in HSK 3.

Pinyin kùnStrokes 7Radical 囗Band HSK 3Words 4

What 困 is made of

囗 (wéi, enclosure) and 木 (mù, tree).

A fence 囗 built around a tree 木.

Free, with no account: the app draws each stroke, then you write it and it says which stroke went wrong.

困(kùn)	to strand 被围住了，一时出不来暴雨过后，几只小羊被困在了河边。After the storm, a few young sheep were stranded by the riverbank. Lesson 204, 春耕夏耘与克服艰辛 · 乡村农业与田园风光 · Rural Agriculture, Countryside Life & Harvest Seasons
困(kùn)难(nan)	difficulty 事情办起来不容易，让人头疼春天干旱给村民带来了不少困难。The spring drought brought the villagers no small difficulty. Lesson 204, 春耕夏耘与克服艰辛 · 乡村农业与田园风光 · Rural Agriculture, Countryside Life & Harvest Seasons
困(kùn)扰(rǎo)	to trouble, perplex; trouble 指使人心烦意乱、难以摆脱企业消除了长期债务困扰。The company got rid of long-standing debt trouble. Lesson 450, 博览自励 · 崇礼敦厚与通济两岸 · Civic Courtesy, Diligence & Cross-River Harmony
贫(pín)困(kùn)	impoverished, poor 指生活困难、缺少财物县里聘请专家陪同考察贫困山村。They surveyed the poor mountain villages. Lesson 625, 山村配器 · 沧溟泛彩与物华天宝 · Aquatic Exploration & Natural Bounty

All 12 of them, and what the radical means, on the 囗 radical page.