チャンス

チャンス comes from English "chance" but is used primarily in the sense of "opportunity" rather than probability or luck.

COMMON PATTERNS:

• チャンスをつかむ: to seize a chance
• チャンスを逃(のが)す: to miss a chance
• チャンスを与(あた)える: to give a chance
• チャンスを生(い)かす: to make the most of a chance
• チャンスを待(ま)つ: to wait for a chance
• 絶好(ぜっこう)のチャンス: a golden opportunity
• ラストチャンス: last chance

VS. 機会(きかい):

• チャンス: opportunity (casual, positive nuance — implies favorable timing)
• 機会(きかい): opportunity (formal, neutral — used in speeches, writing, business)