I turned the radio's knob to adjust the volume.
I turned the radio knob and lowered the volume.
The knob on the pot lid has gotten hot.
snack with drinks; bar snack; side dish
Usually something eaten with alcohol. おつまみ is a very common polite or menu-like form, but plain つまみ is also ordinary.
We ordered edamame as a snack with our beer.
This place has cheap, tasty bar snacks.
a pinch of
Used in quantity expressions, especially ひとつまみ, for an amount that can be pinched between the fingers.
Add a pinch of salt and adjust the flavor.
file handle; handle
Computing term corresponding to a handle, especially a file handle. In current technical writing, the loanword ハンドル is often clearer, so this use may feel translation-like.
In that document, the value that identifies an open file is called a “file handle.”
picking; plucking; harvesting
Only when written 摘み / 摘まみ
Nominal or compound use connected with picking or plucking by hand. As a standalone everyday word, this is much less immediately familiar than the knob or snack senses.
The ripe fruit is picked in the morning.
This goes really well as a snack with sake.
I pulled the drawer's knob to open it.
I drank beer with cheese as a snack.
取っ手 is a larger handle meant for gripping or pulling, while つまみ is typically a small knob or grip turned or pinched with the fingers.
肴 is a more literary or traditional word for food served with alcohol, while つまみ is the everyday, casual word for bar snacks or small dishes eaten with drinks.
ダイヤル refers to a rotating dial (as on a phone, radio, or lock), while つまみ is the more general word for any knob you turn or pull, including but not limited to dials.
摘み refers specifically to picking by hand, like leaves or flowers, while 狩り is the broader suffix used for named picking outings such as いちご狩り.
つまみ specifically means a snack eaten with alcohol, while 妻（つま）as an accompaniment is broader and also covers the sashimi garnish sense.
摘み (つまみ, a pinch or snack/knob) is written with a visually similar kanji but reads differently and means something quite distinct from 掴み (つかみ, a grip or grasp).
counter for small objects; counter for pieces · counter for military units · individual; one person · counter for years of age difference; counter for school years
Kana is the normal practical spelling for the everyday senses: a knob or handle, a snack with drinks, and a pinch of something.
Attested kanji form. It is especially useful where the meaning is connected with pinching, plucking, picking, or harvesting; the everyday snack and knob senses are often written in kana.
Rare attested variant associated with taking or pinching between the fingers. Avoid as the normal spelling for snacks or harvesting.
Kanji-kana spelling that makes the connection with 摘まむ clear. Less common than plain kana in ordinary writing.
Rare attested variant using 抓, a kanji for pinching or grasping. Kana is much safer for general use.
Derived as a noun from the action of つまむ, meaning to pinch, pick up, or hold between the fingers. The kanji spellings are conventional ways to represent that pinching or picking idea; the exact historical development of each variant is uncertain.