1.
pattern, design
A decorative design or arrangement of shapes, colors, or lines.
花模様の布を買った。
I bought fabric with a floral pattern.
縞模様のシャツを着ている。
He's wearing a striped shirt.
縞模様 = striped pattern
この皿には美しい水玉模様が描かれている。
This plate has a beautiful polka dot pattern painted on it.
水玉模様 = polka dot pattern
2.
appearance, state, sign
The way something looks or seems; indications of a situation.
空模様が怪しい。
The sky looks threatening.
空模様 = the look of the sky, weather conditions
雨模様なので傘を持っていこう。
It looks like rain, so let's bring an umbrella.
雨模様 = signs of rain, looking like rain
試合は一方的な展開模様で、ホームチームが圧勝した。
The game took on a one-sided pattern, and the home team won a landslide victory.
模様 has two main meanings: (1) a decorative pattern or design, and (2) the appearance or state of a situation.
DECORATIVE PATTERNS:
- 花模様: floral pattern
- 縞模様: striped pattern
- 水玉模様: polka dot pattern
- 幾何学模様: geometric pattern
APPEARANCE/STATE:
- 空模様: the look of the sky/weather
- 雨模様: signs of rain, looking like rain
- 〜模様だ: it seems like ~, it appears that ~
The pattern meaning is concrete and visual; the state meaning is more abstract and often used in weather and situation reports.