diff --git a/web/src/locales/ja.ts b/web/src/locales/ja.ts
index c281a10..e2dd39e 100644
--- a/web/src/locales/ja.ts
+++ b/web/src/locales/ja.ts
@@ -1263,8 +1263,54 @@ export const catalog: Catalog = {
     "This message was sent automatically, so no read receipt is offered.": "このメールは自動送信されたため、開封確認は行いません。",
     "This server will not hold a message longer than {span}.": "このサーバーはメールを {span} を超えて保留しません。",
     "Upload failed": "アップロードに失敗しました",
+    // ── Third pass ──────────────────────────────────────────────────────
+    // Sentences that lib/ and store/ were building in English, and the two
+    // swipe labels that reach t() through a variable and so were invisible
+    // to a scan for t("literal"). See #259.
+    "Every {n} {frequency}": "{n} {frequency} ごと",
+    "Monthly": "毎月",
+    "Monthly on day {days}": "毎月 {days} 日",
+    "Monthly on the {ordinal} {weekday}": "毎月第{ordinal} {weekday}",
+    "Monthly on {weekday}": "毎月 {weekday}",
+    "Weekly": "毎週",
+    "Weekly on {days}": "毎週 {days}",
+    "add {flag}": "{flag} を付ける",
+    "always": "常に",
+    "body contains \"{value}\"": "本文が \"{value}\" を含む",
+    "body does not contain \"{value}\"": "本文が \"{value}\" を含まない",
+    "delete it": "削除",
+    "fifth": "5",
+    "first": "1",
+    "forward to {address}": "{address} に転送",
+    "fourth": "4",
+    "keep it": "保持",
+    "last": "最終",
+    "mark it read": "既読にする",
+    "move to {folder}": "{folder} に移動",
+    "reject it": "拒否",
+    "remove {flag}": "{flag} を外す",
+    "second": "2",
+    "size is over {n} KB": "サイズが {n} KB を超える",
+    "size is under {n} KB": "サイズが {n} KB 未満",
+    "star it": "スターを付ける",
+    "stop": "停止",
+    "third": "3",
+    "{header} address {op} \"{value}\"": "{header} のアドレスが \"{value}\" を{op}",
+    "{header} {op} \"{value}\"": "{header} が \"{value}\" を{op}",
+    "{rule}, until {date}": "{rule}（{date} まで）",
+    "{tests} → {actions}": "{tests} → {actions}",
   },
   plurals: {
+    // ── Third pass ─────────────────────────────────────────────────────
+    "Every {n} days": { other: "{n} 日ごと" },
+    "Every {n} months": { other: "{n} か月ごと" },
+    "Every {n} months on day {days}": { other: "{n} か月ごと {days} 日" },
+    "Every {n} months on the {ordinal} {weekday}": { other: "{n} か月ごと第{ordinal} {weekday}" },
+    "Every {n} months on {weekday}": { other: "{n} か月ごと {weekday}" },
+    "Every {n} weeks": { other: "{n} 週ごと" },
+    "Every {n} weeks on {days}": { other: "{n} 週ごと {days}" },
+    "Every {n} years": { other: "{n} 年ごと" },
+    "{rule}, {n} times": { other: "{rule}（{n} 回）" },
     // ── Third pass ─────────────────────────────────────────────────────
     "Move {n} messages to Trash?": { other: "{n} 通のメールをゴミ箱に移動しますか？" },
     "{n} days": { other: "{n} 日" },