Analogy: brother: mother :: fly : ?? (4 letters)

flower: rose :: tree: ??? (6 letters)

they have to start with scr, str, spr, or thr.

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flower: rose :: tree : spruce

That's good!!

brother : mother :: fly : spry

Spry means lively, brisk, or vigorous.

I am having homework on that now

To solve these analogies, we need to find a word that has a similar relationship to the given pair of words. Let's break down each analogy step by step:

Analogy 1: brother: mother :: fly : ?? (4 letters)
In this analogy, we are looking for a word that relates to "fly" in the same way "brother" relates to "mother." The word "brother" refers to a male sibling, and "mother" refers to a female parent. To find the word that fits this pattern, we need to think of a word that relates to "fly" in terms of gender and family relations.

The word that matches this analogy is "gnat." Both "fly" and "gnat" are insects, and just like a "brother" is a male sibling, a "gnat" is a type of male fly.

Analogy 2: flower: rose :: tree: ??? (6 letters)
This analogy requires finding a word that has a similar relationship to "tree" as "rose" has to "flower." The relationship here is one of specificity or a particular type/category. A rose is a specific type or kind of flower. So, to complete the analogy, we need to find a word that is a specific type/category of "tree" and is six letters long.

The word that fits this analogy is "spruce." A "spruce" is a specific type of tree, just as a "rose" is a specific type of flower. Both words are six letters long and fall under a particular category.

Therefore, the word that fits these criteria for the analogy is "spruce."

In summary:

Analogy 1: brother: mother :: fly : gnat
Analogy 2: flower: rose :: tree: spruce