General term for mother, used in modern Japanese as a loanword, often in compound words or brand names. Less common than native 母 (はは) in everyday family contexts.
彼女は三人の子供のマザーです。
She is the mother of three children.
マザーズデーにカーネーションを贈った
Mother Superior; Mother (title for a senior nun)
Used as a title for a senior nun in Christian contexts, equivalent to Mother Superior.
マザー・テレサは多くの人に尊敬されている。
Mother Teresa is respected by many people.
Since the computer wouldn't start, I replaced the motherboard.
I gave carnations on Mother's Day.
I installed the CPU on the new motherboard.
高温になってマザーがショートしてしまった。
It got too hot and the motherboard short-circuited.
ファーザー is the loanword counterpart meaning 'father', paired with マザー as 'mother' in modern, often stylized usage.
godmother
host mother · surrogate mother
mother tape
motherboard
motherland
Borrowed from English 'mother'.
mama's boy; excessive attachment to one's mother · Oedipus complex; sexual attraction to one's mother