• Basic forms
• 活きる — be alive; be lively / base form
• 活きます — is alive; works well / masu form
• 活きた — came alive; was lively / ta form
• 活きて — be alive and… / te form
• 活きない — not alive; doesn’t work / negative
• 活きれば — if it comes alive / conditional
• Common expressions
• 技が活きる — skills come alive; work well
• 文章が活きる — writing comes alive
• 活きのいい魚 — lively; fresh fish
• More
• 活きよう — let’s live vividly / 〜よう form
• 活きている — is alive; is lively / state

活きる（いきる） is an ichidan verb. It often means “to be alive / lively” or “to work effectively,” as in “skills come alive” or “writing comes alive.”

• Basic forms
• 活かす — make use of; bring to life / base form
• 活かします — make use of / masu form
• 活かした — made use of; brought to life / ta form
• 活かして — make use of … / te form
• 活かさない — don’t make use of / negative
• 活かせば — if you make use of it / conditional
• Common expressions
• 経験を活かす — make use of experience
• 知識を活かす — make use of knowledge
• チャンスを活かす — take advantage of a chance
• More
• 活かそう — let’s make use of it / 〜よう form
• 活かしている — is making use of … / state

活かす（いかす） is a godan transitive verb. It means “to use something effectively” — experience, strengths, opportunities — or “to bring something to life.”