godan ~る verb / intransitive verb:

• to be understood; to be comprehended; to be grasped ➜ 分かる【わかる】
• to become clear; to be known; to be discovered; to be realized; to be realised; to be found out ➜ 分かる【わかる】

godan ~く verb / intransitive verb / transitive:

• to open; to undo; to unseal; to unpack
• to bloom; to unfold; to spread out
• to open (for business, e.g. in the morning)
• to be wide (gap, etc.); to widen

godan ~く verb / transitive:

• to hold (meeting, etc.); to give; to open
• to found (nation, dynasty, sect, etc.); to open (a new business); to set up; to establish; to start
• to open (ports, borders, etc.)
• to open (an account)
• to open up (new land, path, etc.); to clear; to develop ➜ 拓く
• to open (a file, etc.) - IT term
• to extract (root); to reduce (equation) - Mathematics term
• to cut open (fish) - as 魚を開く - Food term
• to change (kanji into hiragana)

godan ~く verb / intransitive verb:

• to flare (e.g. skirt)
• to slacken (into a poor posture) - as 体が開く, 肩が開く, etc. - Sports term

ichidan verb / transitive:

• to stand up; to put up; to set up; to erect; to raise - also written as 起てる
• to thrust into; to bury into; to dig into
• to make (a noise); to start (a rumour); to raise (a cloud of dust, etc.); to cause
• to make; to establish; to set up; to develop; to formulate
• to put up (a political candidate); to make (one's leader)
• to treat with respect; to give (someone) their due; to make (someone) look good; to avoid embarrassing (someone)
• to sharpen; to make clear
• to shut; to close ➜ 閉てる
• to make tea (matcha); to perform the tea ceremony ➜ 点てる
• to divide by

suffix / ichidan verb:

• to do ... vigorously - after the -masu stem of a verb

adjective:

• barefaced (e.g. lie); shameless; transparent
• pure white; very clear

noun / ~する noun:

• symbol; emblem; image
• expressing; representation; making clear (e.g. someone's virtues)

ichidan verb / transitive:

• to hang; to suspend; to wear (e.g. decoration)
• to lower; to reduce; to bring down
• to demote; to move back; to pull back
• to clear (plates); to remove (food, etc. from table or altar)

noun / ~する noun:

• invention

adjectival noun:

• intelligent; clever ➜ 聡明

noun / ~する noun:

• being enlightened; having the meaning of everything become clear - archaism

noun:

• echo; reverberation
• sound (esp. the distinctive sound of an object or activity, e.g. rain, gun, gallop, drum); noise
• quality of a sound (e.g. a fine phrase, clear voice, resonant bell); feeling of a sound; emotion or feeling inspired by something heard or read