Kanji info: 通商航海条約 — 和英／英和辞典

通

traffic, pass through, avenue, commute, counter for letters, notes, documents, etc.

On'yomi: ツウ (tsuu)、ツ (tsu)

Kun'yomi: とお.る (too.ru)、とお.り (too.ri)、 -とお.り (-too.ri)、 -どお.り (-doo.ri)、とお.す (too.su)、とお.し (too.shi)、 -どお.し (-doo.shi)、かよ.う (kayo.u)

Radical components: マ用込

Stroke order

商

make a deal, selling, dealing in, merchant

On'yomi: ショウ (shou)

Kun'yomi: あきな.う (akina.u)

Radical components: 亠儿冂口并立

Stroke order

航

navigate, sail, cruise, fly

On'yomi: コウ (kou)

Radical components: 亠几舟

Stroke order

海

sea, ocean

On'yomi: カイ (kai)

Kun'yomi: うみ (umi)

Radical components: 乞毋母汁

Stroke order

条

article, clause, counter for articles, clauses, paragraphs, etc., twig, item, stripe, streak

On'yomi: ジョウ (jou)、チョウ (chou)、デキ (deki)

Kun'yomi: えだ (eda)、すじ (suji)

Radical components: 夂攵木

Stroke order

約

promise, approximately, shrink

On'yomi: ヤク (yaku)

Kun'yomi: つづ.まる (tsuzu.maru)、つづ.める (tsuzu.meru)、つづま.やか (tsuzuma.yaka)

Radical components: 丶勹小幺糸

Stroke order