Validating synonyms with Google Trends — relative volume, seasonality, and the right variant.

Google Trends doesn't tell you how many shoppers type a keyword. It tells you how that keyword's popularity has changed and how it compares against alternatives. For synonym work that's the right answer — when two candidates mean the same thing, you don't need absolute volume to decide between them, you need to know which one is rising and which one is dying.

The three Trends views that matter

1. Comparison view. Enter up to five candidate synonyms separated by commas. The graph normalises against the most-searched term in the set. The decision becomes visible: this term is two-thirds the demand of that one. Pick accordingly for title-position priority.
2. Time-series view. A single keyword's last 12 months. Look for seasonal peaks — Christmas, back-to-school, summer, Mother's Day. Keywords that double in a 6-week window deserve calendar planning in copy refreshes and in Sponsored Ads bid uplifts.
3. Regional view. The map breakdown across your market. Especially valuable for multi-country listings where the vocabulary varies by region — "biscuit" vs "cookie", "loaf pan" vs "loaf tin".

Resolving common synonym ties

• Singular vs plural. Trends almost always shows one variant dominates 2:1. Put that one in the title; relegate the other to backend search terms.
• British vs American spelling. Compare "fibre" vs "fiber", "kilogramme" vs "kilogram". Pick the dominant variant for your market and include the minority spelling in backend search terms — silent inclusion, zero conversion risk.
• Brand-style vs descriptive. "tupperware" vs "food storage container". Brand-style words may dominate volume but be illegal on the listing; the descriptive equivalent is what to write, and Trends confirms whether shoppers are searching for the descriptor too.
• Trade-name vs generic. "weed wacker" vs "string trimmer". Same product, different shopper segments. Trends tells you the split; the title can carry both if budget allows.

Seasonality patterns to recognise

• Q4 spike. Almost every gift-able product. Plan the bullet rewrite for September so the listing is ranking by October.
• Spring lift. Outdoor, garden, fitness. Refresh in February.
• Back-to-school spike. School supplies, lunch gear, ergonomic furniture. Refresh in late June.
• Flat year-round. Replacement parts, accessories. Trend curve is the flattening reassurance that justifies year-round investment.
• Declining secular trend. A keyword that's halved over three years is dying — don't anchor a title on it.

Limitations to respect

• Trends data is Google-wide, not Amazon-specific. A Trends-popular keyword can still be a low-Amazon-volume keyword; pair the signal with Amazon-side data from the Extension or AMALYZER (Episode 16) before committing.
• The 100-point scale is relative within the query set. The comparison "loaf pan" vs "fitness tracker" is meaningless; the comparison "loaf pan" vs "bread tin" is exactly the question.
• Sample size shrinks at long tails. A 5-curve graph that's mostly flat means none of the variants has enough Google volume to graph — use a different source for that decision.

How this source feeds evaluation

Trends doesn't add candidates; it weights candidates already harvested. In Episode 14's evaluation pass, each candidate gets a Trends score (rising / stable / declining / seasonal). That score is one of four columns the evaluation matrix balances — alongside search volume, intent match, and category fit.