List: noun, used as a suffix

popular  obsolete kanji  JLPT N3  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic)  abbreviation  noun (suffix)  noun (prefix)  colloquial 

• iron (Fe)
• steel
• iron (will, discipline, lady, etc.)
• railway
• railway enthusiast

popular  JLPT N3  noun  noun (generic)  colloquial  noun (suffix)  historical term 

• expert, learned person
• doctor, PhD, Dr.
• instructor at the imperial court (ritsuryō period)
• pitch and length marks (to accompany a Buddhist liturgical chant, etc.)

popular  rarely used kanji form  JLPT N3  noun  noun (generic)  noun (suffix)  colloquial 

• field (for growing wheat, fruit, vegetables, etc.), cultivated land, vegetable plot, kitchen garden, plantation
• field (of specialization), sphere, area, line
• womb, birth, birthplace

popular  JLPT N5  noun  noun (generic)  noun (suffix)  counter 

• clothes (esp. Western clothes), clothing, dress, costume, suit, outfit
• counter for doses of medicine, gulps of tea, puffs of a cigarette, etc.

popular  search-only kana form  JLPT N3  noun  noun (generic)  noun (suffix) 

• (way of) life, living, livelihood, life circumstances

popular  rarely used kanji form  JLPT N1  noun  noun (generic)  noun (suffix)  Internet slang 

• frame, framework
• border, box
• limit, restriction, quota
• category, bracket, class
• time slot (in a broadcasting schedule)
• stream, livestream, live stream, live (online) broadcast
• spool (of thread), reel

popular  JLPT N3  noun  noun (generic)  な adjective  adjective (generic)  noun taking the genitive case particle の  noun (suffix) 

• shape, form, figure, posture, pose
• appearance
• state, situation
• suitable, fit, reasonable
• about

popular  JLPT N1  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb  noun (suffix)  noun taking the genitive case particle の  adjective (generic) 

• (one's) exclusive use, private use, personal use
• dedicated use, use for a particular purpose
• exclusive use (of particular products), using only (e.g. a certain brand), using solely

popular  JLPT N4  noun  noun (generic)  noun (suffix)  counter 

• ship, boat, watercraft, vessel, seaplane
• tank, tub, vat, trough
• counter for boat-shaped containers (e.g. of sashimi)

popular  JLPT N1  noun  noun (generic)  noun (suffix) 

• treatment, service, dealing (with), handling, management
• handling (of a machine, tool, etc.), operation, use
• treating as, treating like