| アーチ | [, a-chi] (n) (1) arch; (2) homerun (baseball); (P) |
| アウトコーナー | [, autoko-na-] (n) outside corner (baseball, racetrack, etc.) (wasei |
| アベックホームラン | [, abekkuho-muran] (n) back-to-back homeruns (baseball) (wasei |
| アンダースロー | [, anda-suro-] (n) (abbr) underhand throw (baseball); submarine pitch |
| イージーフライ | [, i-ji-furai] (n) routine fly ball (baseball) (wasei |
| インサイドベースボール | [, insaidobe-subo-ru] (n) inside baseball |
| インスインガー | [, insuinga-] (n) inswinger (baseball) |
| インスラ | [, insura] (n) (abbr) inside slider (baseball) |
| ウエーティングサークル | [, ue-teingusa-kuru] (n) waiting circle (baseball); on-deck batter's circle |
| ウエストボール;ウェストボール | [, uesutobo-ru ; uesutobo-ru] (n) waste ball (baseball); taking a pitch |
| エンタイトルツーベース | [, entaitorutsu-be-su] (n) two-base entitlement (baseball) |
| エンドラン | [, endoran] (n) (abbr) hit-and-run (baseball) |
| オーバー(P);オーバ(P) | [, o-ba-(P); o-ba (P)] (adj-na,n,vs) (1) (abbr) overcoat; (2) over; exceeding; going beyond; exaggeration; (3) ball hit over the head of an outfielder (baseball); (P) |
| オーバースロー | [, o-ba-suro-] (n) (abbr) overhand throw (baseball) |
| オープン戦 | [オープンせん, o-pun sen] (n) exhibition game (baseball); open game; (P) |
| お手玉;御手玉 | [おてだま, otedama] (n) (1) beanbag; beanbag juggling game; (2) bobbling the ball (baseball) |
| カージナルス | [, ka-jinarusu] (n) Cardinals (US baseball team) |
| カーブ | [, ka-bu] (n,vs) (1) curve; (2) curve ball (baseball); (P) |
| カットオフ | [, kattoofu] (n) cutoff (play) (baseball) |
| キャンバス(P);カンバス(P) | [, kyanbasu (P); kanbasu (P)] (n) (1) canvas; (2) (キャンバス only) base (in baseball); (P) |
| クイックモーション | [, kuikkumo-shon] (n) (1) quick motion; (2) pitcher throwing to first base (baseball) |
| クッションボール | [, kusshonbo-ru] (n) cushion ball (carom off the outfield wall by a batted ball) (baseball) |
| クリーンアップ | [, kuri-n'appu] (n) clean up (esp. baseball) |
| クリーンアップトリオ(P);クリーンナップトリオ | [, kuri-n'apputorio (P); kuri-nnapputorio] (n) cleanup trio (baseball); (P) |
| クローザー | [, kuro-za-] (n) closer (baseball) |
| ゲーム差 | [ゲームさ, ge-mu sa] (n) distance in the standings between two teams expressed as the difference in number of games won or lost (baseball) |
| ゲッツー;ゲットツー | [, gettsu-; gettotsu-] (n) baseball double-play (wasei |
| さよならホームラン;さようならホームラン | [, sayonara ho-muran ; sayounara ho-muran] (n) game-ending home run (baseball) |
| ジャイアンツ | [, jaiantsu] (n) Giants (baseball team) |
| ジャストミート | [, jasutomi-to] (n,vs) (1) hit the ball squarely (baseball) (wasei |
| シュートボール | [, shu-tobo-ru] (n) shoot ball (baseball); shooter; screwball |
| ショートライナー | [, sho-toraina-] (n) line drive to the shortstop (baseball) |
| シングルハンデッドキャッチ | [, shinguruhandeddokyacchi] (n) one-handed catch (baseball) |
| スイッチヒッター | [, suicchihitta-] (n) switch-hitter (baseball) |
| スチール(P);スチル | [, suchi-ru (P); suchiru] (n) (1) steel; (n,vs) (2) steal (baseball); (n) (3) still (picture); (P) |
| ストライク | [, sutoraiku] (n) strike (e.g. with bowling, baseball); (P) |
| ストライクゾーン | [, sutoraikuzo-n] (n) strike zone (baseball) |
| ストラックアウト | [, sutorakkuauto] (n) strikeout (baseball) |
| スナップ | [, sunappu] (n) (1) snap (e.g. of the wrist in baseball); (2) (abbr) (See スナップショット,スナップ写真) snapshot (esp. of people); (3) (See ホック・2) snap fastener; press stud; (P) |
| タイムリエラー | [, taimuriera-] (n) error which directly allows a run to score (baseball) |